Repository: jmozmoz/cloudmap (language: python)

Issue:
Future access to the Satellite Receiving Station
Hello,
found on [this page](http://www.sat.dundee.ac.uk/future.php):
> The funding provided by NERC for the Satellite Receiving Station will end after March 2019.
For access to our website, images, data and archive after this date please contact us.
If we do not hear from you then the receiving station may close permanently.

Please drop them a line!  
Either via [their comment system](http://www.sat.dundee.ac.uk/comment.html) or directly via email: <info@sat.dundee.ac.uk>.

I wrote this:

> Hello,
thank you for providing this service!
I am only a hobbyist who recently started using your cloud maps.
However, there's probably a few more out there who would like to continue using this service.
Here's a script that generates a global cloudmap from your data:
github.com/jmozmoz/cloudmap
And here's a repository that offers that global map to anyone who might need it:
github.com/apollo-ng/cloudmap
The latter wouldn't even show up as traffic on your site, which is unfortunate.
The generated map is particularly useful for Xplanet, a powerful opensource application, developed since the late nineties and available for all major operating systems.

PS: and thanks to jmozmoz for providing this script!


Discussion / hints:
Damned, we certainly will need a new source of cloud maps.

It is quite amazing that our taxes are used to finance the satellites producing these maps, but we cannot actually get the bloody maps afterwards, they do not seem to be public domain...
There are some possible sources for images:
Overview of services: https://dbaron.org/sat/comp/

https://www.aviationweather.gov/satellite (all images seem to have a grid overlayed)

https://a.atmos.washington.edu/data/weather.html#satellite (also with grid)
https://atmos.uw.edu/cgi-bin/latest.cgi?ir-moll

https://www.ssec.wisc.edu/data/geo/#/animation?satellite=fy2g

https://www.ssec.wisc.edu/data/geo/#/animation?satellite=goes-17-fusion&end_datetime=latest&n_images=1&coverage=fd&channel=12&image_quality=gif&anim_method=javascript

The latter also has coast lines overlayed. But it seems to be the complete collection of images. Unfortunately, it does not give any license/usage information. 


The dundee website seems really be dead since end of August ("Inactive since 21 Aug 2019")

For a first implementation to use a new image source see https://github.com/apollo-ng/cloudmap/issues/1

Another source:
https://en.allmetsat.com/index.html

And yet another source:
https://www.nrlmry.navy.mil/sat-bin/global.cgi

Things move. Have you seen those ones? Very nice, full disk very high resolution, a lot of channel, free download:

https://www.star.nesdis.noaa.gov/GOES/fulldisk.php?sat=G16
https://www.star.nesdis.noaa.gov/GOES/fulldisk.php?sat=G17

Still we would need some equivalent over Europe and Japan, something that does not suck in terms of resolution.
For hardcore enthusiasts, but still GEOS: 

https://pietern.github.io/goestools/guides/minimal_receiver.html#minimal-receiver
This rocks too:
https://worldview.earthdata.nasa.gov/
I guess, I will wait how this works out:
http://www.dundeesat.co.uk/
https://www.theregister.co.uk/2020/01/02/dundee_satellite_station/
I have used this project for ages.  @jmozmoz thank you for all of the amazing work!

I have spent the last few weeks trying to track down various reliable sources of full disk images.  There are a lot of sporadic locations that maybe one could piece together, but it will always be prone to breaking when one location goes offline or changes, as we have seen.

In the process I found RealEarth from the University of Wisconsin Space Science and Engineering Center [http://re.ssec.wisc.edu/](http://re.ssec.wisc.edu/).  RealEarth has a web api for requesting and downloading the images we need [http://re.ssec.wisc.edu/doc/api.php](http://re.ssec.wisc.edu/doc/api.php).  In addition, they also provide a tiling service that provides the images directly without requiring any API [http://re.ssec.wisc.edu/doc/dataaccess.php#tiles](http://re.ssec.wisc.edu/doc/dataaccess.php#tiles).

Without any account, they allow 500MB per day of downloading, which seems to be metered by IP address.  Additionally, with a free account they allow up to 1GB per day.

They do offer the full disk images, albeit in a projected form.  And one could download each and perform the appropriate high latitude cleanup and blending.

But they also offer a full IR band composite image of the world updated every hour [http://re.ssec.wisc.edu/products/globalir](http://re.ssec.wisc.edu/products/globalir).  The stitching is pretty good and could probably be massaged relatively easily with a mask if desired.  They offer various zoom levels.  At zoom level 5 you have to download 512 images at 256x256 resolution each for a total resolution of 8192x8192.  This seems to be about the max by my eye.  The total download size is about 23MB.  This means you could do the download once per hour with an account and stay well under the 1GB daily limit.

I made a mockup of the collage here [https://krkeegan.github.io/realearth-example.html](https://krkeegan.github.io/realearth-example.html).  It may take a minute for everything to download, and you make have to zoom out in your browser.

I think I am going to make a simply python script with PIL to download and stitch these images once per hour.  It is going to be very basic.  I am happy to contribute help to anyone else if they want to start a repo, but my python is all self taught so I don't have the know-how to make a proper package and such.
Thanks for the link krkeegan!
For clouds.boff.in, it is not in my style to accept stolen things. No code available, no licence available, data taken from "some" public domain, and the guy asked for some money!? WTF...
If anyone is interested in running their own script to generate cloud maps, here is a simple python script I put together.  The output with the default settings will produce a 4096*2048 image identical to that produced by this project.

The script is here https://gist.github.com/krkeegan/64e96290eb6569790d230085016501da

Happy coding!
@krkeegan your script in that gist is ace! Thank you so much, just integrated it and I have a beautiful desktop background again :-)
Thanks @krkeegan. FYI it is working with python 3.7.3.
@krkeegan great on 3.8.5, very much appreciated. xplanetFX is back on my monitors, thank you
Hi all - apologies for resurrecting an old issue. I've been looking for cloud maps for a project and was sad to see that you lost your data source. I've built a new project which generates and hosts daily cloud maps from NASA (NOAA/VIIRS) data which might be of interest to some of you: https://github.com/matteason/daily-cloud-maps


@matteason you are the hero we needed! 😄 
See https://github.com/matteason/live-cloud-maps/

Fix patch:
diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
new file mode 100644
index 0000000..787fea2
--- /dev/null
+++ b/.github/workflows/python-package.yml
@@ -0,0 +1,58 @@
+# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python
+
+name: Python package
+
+on:
+  push:
+    branches: [ "**" ]
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v3
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install flake8 tomli
+        python -m pip install -U setuptools
+    - name: Lint with flake8
+      run: |
+        # stop the build if there are Python syntax errors or undefined names
+        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
+        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+    - name: Build package
+      run: |
+        python setup.py sdist
+        ls dist/CreateCloudMap-*.tar.gz
+    - name: Install package
+      run: |
+        export PKG=`ls dist/CreateCloudMap-*.tar.gz`
+        pip install $PKG
+    - name: Simple test runs
+      run: |
+        create_map -h
+        create_map --version
+        create_map -d
+        identify xplanet/images/clouds_2048.jpg
+        ls -l xplanet/images/clouds_2048.jpg
+        touch xplanet/images/clouds_2048.jpg
+        ls -l xplanet/images/clouds_2048.jpg
+        create_map -d
+        ls -l xplanet/images/clouds_2048.jpg
+        create_map -d -f
+        ls -l xplanet/images/clouds_2048.jpg
diff --git a/.gitignore b/.gitignore
index 0f661b0..5acbc1c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -36,5 +36,7 @@ nosetests.xml
 .pydevproject
 /MANIFEST
 /my.ini
-/images/
+/images*/
 /xplanet/
+/testout/
+/notebooks/
diff --git a/.pydevproject b/.pydevproject
index 5bacdf1..ff97849 100644
--- a/.pydevproject
+++ b/.pydevproject
@@ -1,9 +1,16 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <?eclipse-pydev version="1.0"?><pydev_project>
-<pydev_pathproperty name="org.python.pydev.PROJECT_SOURCE_PATH">
-<path>/cloudmap</path>
-<path>/cloudmap/cloudmap</path>
-</pydev_pathproperty>
-<pydev_property name="org.python.pydev.PYTHON_PROJECT_VERSION">python 2.7</pydev_property>
-<pydev_property name="org.python.pydev.PYTHON_PROJECT_INTERPRETER">Default</pydev_property>
+    
+    <pydev_pathproperty name="org.python.pydev.PROJECT_SOURCE_PATH">
+        
+        <path>/cloudmap</path>
+        
+        <path>/cloudmap/cloudmap</path>
+        
+    </pydev_pathproperty>
+    
+    <pydev_property name="org.python.pydev.PYTHON_PROJECT_VERSION">python interpreter</pydev_property>
+    
+    <pydev_property name="org.python.pydev.PYTHON_PROJECT_INTERPRETER">Default</pydev_property>
+    
 </pydev_project>
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index e27208e..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,45 +0,0 @@
-language: python
-
-python:
-  - "2.7"
-#   - "3.4"
-#   - "3.5"
-  - "3.6"
-#  - "3.7"
-
-env:
-  - DUNDEE_TEMPDIR=images_resample DUNDEE_RESOLUTION=high DUNDEE_NPROCS=2 DUNDEE_PROJECTION=pyresample
-
-before_install:
-  - sudo apt-get install libproj-dev proj-bin proj-data
-  - wget http://us.archive.ubuntu.com/ubuntu/pool/universe/p/proj/libproj9_4.9.2-2_amd64.deb 
-  - sudo dpkg -i libproj9_4.9.2-2_amd64.deb 
-  - wget http://us.archive.ubuntu.com/ubuntu/pool/universe/p/proj/libproj-dev_4.9.2-2_amd64.deb
-  - sudo dpkg -i libproj-dev_4.9.2-2_amd64.deb
-  - sudo apt-get install libgeos-dev
-#  - sudo ln -s /usr/lib/libgeos-3.*.so /usr/lib/libgeos.so
-  - sudo apt-get install libblas-dev liblapack-dev libatlas-base-dev gfortran
-  - sudo apt-get install imagemagick # need this for "file" output
-
-script: 
-  - mkdir -p $HOME/.CreateCloudMap
-  - sh ./tests/create_cfg.sh
-  - python setup.py sdist --format=gztar
-  - ls dist/CreateCloudMap-*.tar.gz
-  - export PKG=`ls dist/CreateCloudMap-*.tar.gz`
-  - pip install $PKG
-  - create_map -h
-  - create_map --version
-  - create_map -m 23
-  - identify xplanet/images/clouds_2048.jpg
-  - rm xplanet/images/clouds_2048.jpg
-  - pip install cython
-  - pip install pyproj==1.9.6
-  - pip install ${PKG}[debug_cartopy]
-  - pip uninstall matplotlib -y
-  - pip install matplotlib 
-  - pip install git+https://github.com/matplotlib/basemap
-  - pip install ${PKG}[debug_pyresample]
-  - create_map -d -m 23
-  - identify xplanet/images/clouds_2048.jpg
-  - rm xplanet/images/clouds_2048.jpg
diff --git a/MANIFEST.in b/MANIFEST.in
index 9501c1e..e030d8b 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,5 +1,1 @@
-include README.rst LICENSE
-include cfg/CreateCloudMap.ini
-include cfg/satellites.json
-include versioneer.py
-include cloudmap/_version.py
+include cfg/CreateCloudMap.ini
\ No newline at end of file
diff --git a/README.rst b/README.rst
index b762b9e..a75cf86 100644
--- a/README.rst
+++ b/README.rst
@@ -10,30 +10,20 @@ CreateCloudMap
 .. image:: https://img.shields.io/pypi/l/CreateCloudMap.svg
     :target: https://pypi.python.org/pypi/createcloudmap
 
-.. image:: https://travis-ci.org/jmozmoz/cloudmap.svg?branch=master
-    :target: https://travis-ci.org/jmozmoz/cloudmap
+.. image:: https://github.com/jmozmoz/cloudmap/actions/workflows/python-package.yml/badge.svg
 
-Python script to create a cloud map for xplanet using satellite images from the
-`Dundee Satellite Receiving Station, Dundee University, UK <http://www.sat.dundee.ac.uk/>`_.
+Python script to create a cloud map for xplanet using the cloud map provided
+by https://clouds.matteason.co.uk/.
 This script can also be installed by pip from `pypi <https://pypi.python.org/pypi/CreateCloudMap>`_.
 
-`xplanet <http://xplanet.sourceforge.net/>`_ can use a cloud map to make the earth look more pretty.
+`xplanet <https://xplanet.sourceforge.net/>`_ can use a cloud map to make the earth look more pretty.
 
+The script automatically checks, if a new image is available. The default
+behavior is to only download the image, if it is new.
 
-There is a free service which create one such cloud map per day. Due to a temporary unavailability
-of that service this script `create_map` was developed to automatically download the necessary geostationary images
-from the `Dundee Satellite Receiving Station, Dundee University, UK <http://www.sat.dundee.ac.uk/>`_.
-To use this service you need an account there (which is free). Also a new cloud map can be created every three hours.
-
-Set your login information in the configuration file (default name for UNIX-like systems: ``$HOME/.CreateCloudMap/CreateCloudMap.ini``, for Windows: ``%HOME%\.CreateCloudMap\CreateCloudMap.ini``)::
-
-  [Download]
-  username = user
-  password = secret
-  tempdir = images
-  # Use one of the following for resolution: low, medium, high
-  resolution = medium
-  purge = false
+Set the desired image size in the configuration file together with the output path
+(default name for UNIX-like systems: ``$HOME/.CreateCloudMap/CreateCloudMap.ini``,
+for Windows: ``%HOME%\.CreateCloudMap\CreateCloudMap.ini``)::
 
   [xplanet]
   destinationdir = xplanet/images
@@ -41,79 +31,24 @@ Set your login information in the configuration file (default name for UNIX-like
   width = 2048
   height = 1024
 
-  [processing]
-  nprocs = 1
-  # use either pyresample or cartopy
-  projection = pyresample
-
-If the configuration file already exists, a new version is copied to ``CreateCloudMap.ini.new`` to not overwrite the login data.
+If the configuration file already exists, a new version is copied to ``CreateCloudMap.ini.new``
+to not overwrite the existing settings.
 The old config file should work after an update, because default values are used for
 newly introduced options.
 
-``tempdir`` specifies the directory where the downloaded images (and if enabled by the command line
-switch ``--debug`` or ``-d``) intermediate debug images are stored. ``destinationdir`` specifies the directory where
-the output ``destinationfile`` is saved.
-
-``resolution`` can be set to ``low``, ``medium`` or ``high`` to determine the resolution
-of the downloaded satellite images.
-
-If ``purge`` is set to true old satellite images will be deleted which are not
-used to draw the current cloud map.
-
 ``width`` and ``height`` set the dimensions of the cloud map in ``destinationfile``.
-
-``nprocs`` specifies the number of processors to be used for the processing of the
-satellite images. If this number is larger than 1 the multiprocessing library
-will be used to create separate processes communicating sending back their
-results by queues.
-
-``projection`` specifies the Python library used for projecting the geostationary
-images onto a flat map. Possible values are ``pyresample`` and ``cartopy``.
-``pyresample`` is the standard value and this library is set as dependency, so
-it is installed during the installation of ``CreateCloudMap`` (if pip is used to
-install it). If ``cartopy`` is used, this library must be installed manually.
-``cartopy`` is (currently much) slower than ``pyresample``.
-
+Only resolutions available at https://clouds.matteason.co.uk/ are supported.
 
 To see all command line options of the script use ``--help``::
 
   $ create_map --help
-  usage: create_map [-h] [-d] [-c FILE] [-m MAX_AGE] [-f]
+  usage: create_map.py [-h] [-d] [-c FILE] [-f] [-V]
 
-  optional arguments:
+  options:
     -h, --help            show this help message and exit
-    -d, --debug           store intermediate results
+    -d, --debug           debug outputs
     -c FILE, --conf_file FILE
                           Specify config file
-    -m MAX_AGE, --max_age MAX_AGE
-                          Maximal age of satellite images to download
     -f, --force           Force to recreate cloud map
+    -V, --version         show program's version number and exit
 
-Dependencies
-............
-To automatically install ``cartopy`` use the following command line for pip::
-
-  pip install CreateCloudMap[cartopy]
-
-
-For the debug output to work with the ``pyresample`` projection the
-libraries matplotlib and basemap have to be installed. This can be done either
-manually or by giving the extra requirement option ``[debug_pyresample]``
-when using pip::
-
-  pip install CreateCloudMap[debug_pyresample]
-
-For the debug output to work with the ``cartopy`` projection the
-library matplotlib is necessary. It can be automatically installed by using
-pip::
-
-  pip install CreateCloudMap[cartopy,debug_cartopy]
-
-
-(So if no extra dependency is given the pyresample library will be installed
-(if it has not been already installed) and no debug output is possible)
-
-References
-..........
-A nice description of the concepts forming the basis of this program can be found
-at `this blog post <https://apollo.open-resource.org/mission:log:2014:06:17:new-fresh-global-cloudmap-distribution-service-xplanet>`_.
diff --git a/cfg/CreateCloudMap.ini b/cfg/CreateCloudMap.ini
index 529db59..58c2156 100644
--- a/cfg/CreateCloudMap.ini
+++ b/cfg/CreateCloudMap.ini
@@ -1,17 +1,5 @@
-[Download]
-username = user
-password = secret
-tempdir = images
- # Use one of the following for resolution: medium, high
-resolution = medium
-purge = false
-
 [xplanet]
 destinationdir = xplanet/images
 destinationfile = clouds_2048.jpg
 width = 2048
 height = 1024
-
-[processing]
-nprocs = 1
-projection = pyresample
\ No newline at end of file
diff --git a/cfg/satellites.json b/cfg/satellites.json
deleted file mode 100644
index b194d5f..0000000
--- a/cfg/satellites.json
+++ /dev/null
@@ -1,124 +0,0 @@
-[
-    {
-        "type": "geoDundee",
-        "longitude": 0.0,
-        "limit":
-        {
-           "left": 17,
-           "right": 911,
-           "top": 17,
-           "bottom": 911
-        },
-        "rescale": "ID",
-        "base_url": "000.0E/MSG/",
-        "suffix": "_MSG4_9_"
-    },
-    {
-        "type": "geoDundee",
-        "longitude": 41.5,
-        "limit":
-        {
-           "left": 17,
-           "right": 911,
-           "top": 15,
-           "bottom": 914
-        },
-        "rescale": "ID",
-        "base_url": "041.5E/MSG/",
-        "suffix": "_MSG1_7_"
-    },
-    {
-        "type": "geoDundee",
-        "longitude": 76.0,
-        "limit":
-        {
-           "left": 13,
-           "right": 684,
-           "top": 12,
-           "bottom": 684
-        },
-        "rescale": "ID",
-        "base_url": "077.0E/GOMS/",
-        "suffix": "_GOMS_8_"
-    },
-    {
-        "type": "geoDundee",
-        "longitude": -75.0,
-        "limit":
-        {
-           "left": 38,
-           "right": 5380,
-           "top": 30,
-           "bottom": 5392
-        },
-        "resolution_str":
-        {
-            "low": "S1",
-            "medium": "S1",
-            "high": "S1"
-        },
-        "resolution_mult":
-        {
-            "low": 1,
-            "medium": 1,
-            "high": 1
-        },
-        "rescale": "ID",
-        "base_url": "075.0W/GOES/",
-        "suffix": "_GOES16_13_"
-    },
-    {
-        "type": "geoDundee",
-        "longitude": -128.0,
-        "limit":
-        {
-           "left": 49,
-           "right": 2665,
-           "top": 53,
-           "bottom": 2650
-        },
-        "resolution_str":
-        {
-            "low": "S1",
-            "medium": "S1",
-            "high": "S1"
-        },
-        "resolution_mult":
-        {
-            "low": 1,
-            "medium": 1,
-            "high": 1
-        },
-        "rescale": "ID",
-        "base_url": "128.0W/GOES/",
-        "suffix": "_GOES15_4_"
-    },
-    {
-        "type": "__geoJMA",
-        "longitude": 139.5,
-        "limit":
-        {
-            "left": 12,
-            "right": 787,
-            "top": 12,
-            "bottom": 787
-        },
-        "rescale": "ID",
-        "base_url": "",
-        "suffix": "-00"
-    },
-    {
-        "type": "geoDundee",
-        "longitude": 140.7,
-        "limit":
-        {
-           "left": 18,
-           "right": 1357,
-           "top": 16,
-           "bottom": 1359
-        },
-        "rescale": "ID",
-        "base_url": "140.7E/MTSAT/",
-        "suffix": "_MTSAT3_15_"
-    }
-]
\ No newline at end of file
diff --git a/cloudmap/__init__.py b/cloudmap/__init__.py
index 896456e..7c7a464 100644
--- a/cloudmap/__init__.py
+++ b/cloudmap/__init__.py
@@ -1,9 +1,4 @@
-from .geo_dundee import GeoSatelliteDataDundee
-from .geo_jma import GeoSatelliteDataJMA
-from .polar import PolarSatelliteData
-from .satellites import Satellites
-from .mkdir import mkdir_p
-
-from ._version import get_versions
-__version__ = get_versions()['version']
-del get_versions
\ No newline at end of file
+from .live_cloud_maps import CloudMap
+
+from . import _version
+__version__ = _version.get_versions()['version']
diff --git a/cloudmap/_version.py b/cloudmap/_version.py
index 7ebc5bc..d15b714 100644
--- a/cloudmap/_version.py
+++ b/cloudmap/_version.py
@@ -5,98 +5,214 @@
 # directories (produced by setup.py build) will contain a much shorter file
 # that just contains the computed version number.
 
-# This file is released into the public domain. Generated by
-# versioneer-0.11 (https://github.com/warner/python-versioneer)
+# This file is released into the public domain.
+# Generated by versioneer-0.29
+# https://github.com/python-versioneer/python-versioneer
 
-# these strings will be replaced by git during git-archive
-git_refnames = "$Format:%d$"
-git_full = "$Format:%H$"
+"""Git implementation of _version.py."""
 
-# these strings are filled in when 'setup.py versioneer' creates _version.py
-tag_prefix = ""
-parentdir_prefix = "CreateCloudMap-"
-versionfile_source = "cloudmap/_version.py"
+import errno
+import os
+import re
+import subprocess
+import sys
+from typing import Any, Callable, Dict, List, Optional, Tuple
+import functools
 
-import os, sys, re, subprocess, errno
 
-def run_command(commands, args, cwd=None, verbose=False, hide_stderr=False):
+def get_keywords() -> Dict[str, str]:
+    """Get the keywords needed to look up the version information."""
+    # these strings will be replaced by git during git-archive.
+    # setup.py/versioneer.py will grep for the variable names, so they must
+    # each be defined on a line of their own. _version.py will just call
+    # get_keywords().
+    git_refnames = "$Format:%d$"
+    git_full = "$Format:%H$"
+    git_date = "$Format:%ci$"
+    keywords = {"refnames": git_refnames, "full": git_full, "date": git_date}
+    return keywords
+
+
+class VersioneerConfig:
+    """Container for Versioneer configuration parameters."""
+
+    VCS: str
+    style: str
+    tag_prefix: str
+    parentdir_prefix: str
+    versionfile_source: str
+    verbose: bool
+
+
+def get_config() -> VersioneerConfig:
+    """Create, populate and return the VersioneerConfig() object."""
+    # these strings are filled in when 'setup.py versioneer' creates
+    # _version.py
+    cfg = VersioneerConfig()
+    cfg.VCS = "git"
+    cfg.style = "pep440"
+    cfg.tag_prefix = ""
+    cfg.parentdir_prefix = "CreateCloudMap-"
+    cfg.versionfile_source = "cloudmap/_version.py"
+    cfg.verbose = False
+    return cfg
+
+
+class NotThisMethod(Exception):
+    """Exception raised if a method is not valid for the current scenario."""
+
+
+LONG_VERSION_PY: Dict[str, str] = {}
+HANDLERS: Dict[str, Dict[str, Callable]] = {}
+
+
+def register_vcs_handler(vcs: str, method: str) -> Callable:  # decorator
+    """Create decorator to mark a method as the handler of a VCS."""
+    def decorate(f: Callable) -> Callable:
+        """Store f in HANDLERS[vcs][method]."""
+        if vcs not in HANDLERS:
+            HANDLERS[vcs] = {}
+        HANDLERS[vcs][method] = f
+        return f
+    return decorate
+
+
+def run_command(
+    commands: List[str],
+    args: List[str],
+    cwd: Optional[str] = None,
+    verbose: bool = False,
+    hide_stderr: bool = False,
+    env: Optional[Dict[str, str]] = None,
+) -> Tuple[Optional[str], Optional[int]]:
+    """Call the given command(s)."""
     assert isinstance(commands, list)
-    p = None
-    for c in commands:
+    process = None
+
+    popen_kwargs: Dict[str, Any] = {}
+    if sys.platform == "win32":
+        # This hides the console window if pythonw.exe is used
+        startupinfo = subprocess.STARTUPINFO()
+        startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
+        popen_kwargs["startupinfo"] = startupinfo
+
+    for command in commands:
         try:
+            dispcmd = str([command] + args)
             # remember shell=False, so use git.cmd on windows, not just git
-            p = subprocess.Popen([c] + args, cwd=cwd, stdout=subprocess.PIPE,
-                                 stderr=(subprocess.PIPE if hide_stderr
-                                         else None))
+            process = subprocess.Popen([command] + args, cwd=cwd, env=env,
+                                       stdout=subprocess.PIPE,
+                                       stderr=(subprocess.PIPE if hide_stderr
+                                               else None), **popen_kwargs)
             break
-        except EnvironmentError:
-            e = sys.exc_info()[1]
+        except OSError as e:
             if e.errno == errno.ENOENT:
                 continue
             if verbose:
-                print("unable to run %s" % args[0])
+                print("unable to run %s" % dispcmd)
                 print(e)
-            return None
+            return None, None
     else:
         if verbose:
             print("unable to find command, tried %s" % (commands,))
-        return None
-    stdout = p.communicate()[0].strip()
-    if sys.version >= '3':
-        stdout = stdout.decode()
-    if p.returncode != 0:
+        return None, None
+    stdout = process.communicate()[0].strip().decode()
+    if process.returncode != 0:
         if verbose:
-            print("unable to run %s (error)" % args[0])
-        return None
-    return stdout
+            print("unable to run %s (error)" % dispcmd)
+            print("stdout was %s" % stdout)
+        return None, process.returncode
+    return stdout, process.returncode
 
 
-def versions_from_parentdir(parentdir_prefix, root, verbose=False):
-    # Source tarballs conventionally unpack into a directory that includes
-    # both the project name and a version string.
-    dirname = os.path.basename(root)
-    if not dirname.startswith(parentdir_prefix):
-        if verbose:
-            print("guessing rootdir is '%s', but '%s' doesn't start with prefix '%s'" %
-                  (root, dirname, parentdir_prefix))
-        return None
-    return {"version": dirname[len(parentdir_prefix):], "full": ""}
+def versions_from_parentdir(
+    parentdir_prefix: str,
+    root: str,
+    verbose: bool,
+) -> Dict[str, Any]:
+    """Try to determine the version from the parent directory name.
+
+    Source tarballs conventionally unpack into a directory that includes both
+    the project name and a version string. We will also support searching up
+    two directory levels for an appropriately named parent directory
+    """
+    rootdirs = []
+
+    for _ in range(3):
+        dirname = os.path.basename(root)
+        if dirname.startswith(parentdir_prefix):
+            return {"version": dirname[len(parentdir_prefix):],
+                    "full-revisionid": None,
+                    "dirty": False, "error": None, "date": None}
+        rootdirs.append(root)
+        root = os.path.dirname(root)  # up a level
+
+    if verbose:
+        print("Tried directories %s but none started with prefix %s" %
+              (str(rootdirs), parentdir_prefix))
+    raise NotThisMethod("rootdir doesn't start with parentdir_prefix")
+
 
-def git_get_keywords(versionfile_abs):
+@register_vcs_handler("git", "get_keywords")
+def git_get_keywords(versionfile_abs: str) -> Dict[str, str]:
+    """Extract version information from the given file."""
     # the code embedded in _version.py can just fetch the value of these
     # keywords. When used from setup.py, we don't want to import _version.py,
     # so we do it with a regexp instead. This function is not used from
     # _version.py.
-    keywords = {}
+    keywords: Dict[str, str] = {}
     try:
-        f = open(versionfile_abs,"r")
-        for line in f.readlines():
-            if line.strip().startswith("git_refnames ="):
-                mo = re.search(r'=\s*"(.*)"', line)
-                if mo:
-                    keywords["refnames"] = mo.group(1)
-            if line.strip().startswith("git_full ="):
-                mo = re.search(r'=\s*"(.*)"', line)
-                if mo:
-                    keywords["full"] = mo.group(1)
-        f.close()
-    except EnvironmentError:
+        with open(versionfile_abs, "r") as fobj:
+            for line in fobj:
+                if line.strip().startswith("git_refnames ="):
+                    mo = re.search(r'=\s*"(.*)"', line)
+                    if mo:
+                        keywords["refnames"] = mo.group(1)
+                if line.strip().startswith("git_full ="):
+                    mo = re.search(r'=\s*"(.*)"', line)
+                    if mo:
+                        keywords["full"] = mo.group(1)
+                if line.strip().startswith("git_date ="):
+                    mo = re.search(r'=\s*"(.*)"', line)
+                    if mo:
+                        keywords["date"] = mo.group(1)
+    except OSError:
         pass
     return keywords
 
-def git_versions_from_keywords(keywords, tag_prefix, verbose=False):
-    if not keywords:
-        return {} # keyword-finding function failed to find keywords
+
+@register_vcs_handler("git", "keywords")
+def git_versions_from_keywords(
+    keywords: Dict[str, str],
+    tag_prefix: str,
+    verbose: bool,
+) -> Dict[str, Any]:
+    """Get version information from git keywords."""
+    if "refnames" not in keywords:
+        raise NotThisMethod("Short version file found")
+    date = keywords.get("date")
+    if date is not None:
+        # Use only the last line.  Previous lines may contain GPG signature
+        # information.
+        date = date.splitlines()[-1]
+
+        # git-2.2.0 added "%cI", which expands to an ISO-8601 -compliant
+        # datestamp. However we prefer "%ci" (which expands to an "ISO-8601
+        # -like" string, which we must then edit to make compliant), because
+        # it's been around since git-1.5.3, and it's too difficult to
+        # discover which version we're using, or to work around using an
+        # older one.
+        date = date.strip().replace(" ", "T", 1).replace(" ", "", 1)
     refnames = keywords["refnames"].strip()
     if refnames.startswith("$Format"):
         if verbose:
             print("keywords are unexpanded, not using")
-        return {} # unexpanded, so not in an unpacked git-archive tarball
-    refs = set([r.strip() for r in refnames.strip("()").split(",")])
+        raise NotThisMethod("unexpanded keywords, not a git-archive tarball")
+    refs = {r.strip() for r in refnames.strip("()").split(",")}
     # starting in git-1.8.3, tags are listed as "tag: foo-1.0" instead of
     # just "foo-1.0". If we see a "tag: " prefix, prefer those.
     TAG = "tag: "
-    tags = set([r[len(TAG):] for r in refs if r.startswith(TAG)])
+    tags = {r[len(TAG):] for r in refs if r.startswith(TAG)}
     if not tags:
         # Either we're using git < 1.8.3, or there really are no tags. We use
         # a heuristic: assume all version tags have a digit. The old git %d
@@ -105,79 +221,463 @@ def git_versions_from_keywords(keywords, tag_prefix, verbose=False):
         # between branches and tags. By ignoring refnames without digits, we
         # filter out many common branch names like "release" and
         # "stabilization", as well as "HEAD" and "master".
-        tags = set([r for r in refs if re.search(r'\d', r)])
+        tags = {r for r in refs if re.search(r'\d', r)}
         if verbose:
-            print("discarding '%s', no digits" % ",".join(refs-tags))
+            print("discarding '%s', no digits" % ",".join(refs - tags))
     if verbose:
         print("likely tags: %s" % ",".join(sorted(tags)))
     for ref in sorted(tags):
         # sorting will prefer e.g. "2.0" over "2.0rc1"
         if ref.startswith(tag_prefix):
             r = ref[len(tag_prefix):]
+            # Filter out refs that exactly match prefix or that don't start
+            # with a number once the prefix is stripped (mostly a concern
+            # when prefix is '')
+            if not re.match(r'\d', r):
+                continue
             if verbose:
                 print("picking %s" % r)
-            return { "version": r,
-                     "full": keywords["full"].strip() }
-    # no suitable tags, so we use the full revision id
+            return {"version": r,
+                    "full-revisionid": keywords["full"].strip(),
+                    "dirty": False, "error": None,
+                    "date": date}
+    # no suitable tags, so version is "0+unknown", but full hex is still there
     if verbose:
-        print("no suitable tags, using full revision id")
-    return { "version": keywords["full"].strip(),
-             "full": keywords["full"].strip() }
-
+        print("no suitable tags, using unknown + full revision id")
+    return {"version": "0+unknown",
+            "full-revisionid": keywords["full"].strip(),
+            "dirty": False, "error": "no suitable tags", "date": None}
 
-def git_versions_from_vcs(tag_prefix, root, verbose=False):
-    # this runs 'git' from the root of the source tree. This only gets called
-    # if the git-archive 'subst' keywords were *not* expanded, and
-    # _version.py hasn't already been rewritten with a short version string,
-    # meaning we're inside a checked out source tree.
 
-    if not os.path.exists(os.path.join(root, ".git")):
-        if verbose:
-            print("no .git in %s" % root)
-        return {}
+@register_vcs_handler("git", "pieces_from_vcs")
+def git_pieces_from_vcs(
+    tag_prefix: str,
+    root: str,
+    verbose: bool,
+    runner: Callable = run_command
+) -> Dict[str, Any]:
+    """Get version from 'git describe' in the root of the source tree.
 
+    This only gets called if the git-archive 'subst' keywords were *not*
+    expanded, and _version.py hasn't already been rewritten with a short
+    version string, meaning we're inside a checked out source tree.
+    """
     GITS = ["git"]
     if sys.platform == "win32":
         GITS = ["git.cmd", "git.exe"]
-    stdout = run_command(GITS, ["describe", "--tags", "--dirty", "--always"],
-                         cwd=root)
-    if stdout is None:
-        return {}
-    if not stdout.startswith(tag_prefix):
+
+    # GIT_DIR can interfere with correct operation of Versioneer.
+    # It may be intended to be passed to the Versioneer-versioned project,
+    # but that should not change where we get our version from.
+    env = os.environ.copy()
+    env.pop("GIT_DIR", None)
+    runner = functools.partial(runner, env=env)
+
+    _, rc = runner(GITS, ["rev-parse", "--git-dir"], cwd=root,
+                   hide_stderr=not verbose)
+    if rc != 0:
         if verbose:
-            print("tag '%s' doesn't start with prefix '%s'" % (stdout, tag_prefix))
-        return {}
-    tag = stdout[len(tag_prefix):]
-    stdout = run_command(GITS, ["rev-parse", "HEAD"], cwd=root)
-    if stdout is None:
-        return {}
-    full = stdout.strip()
-    if tag.endswith("-dirty"):
-        full += "-dirty"
-    return {"version": tag, "full": full}
-
-
-def get_versions(default={"version": "unknown", "full": ""}, verbose=False):
+            print("Directory %s not under git control" % root)
+        raise NotThisMethod("'git rev-parse --git-dir' returned error")
+
+    # if there is a tag matching tag_prefix, this yields TAG-NUM-gHEX[-dirty]
+    # if there isn't one, this yields HEX[-dirty] (no NUM)
+    describe_out, rc = runner(GITS, [
+        "describe", "--tags", "--dirty", "--always", "--long",
+        "--match", f"{tag_prefix}[[:digit:]]*"
+    ], cwd=root)
+    # --long was added in git-1.5.5
+    if describe_out is None:
+        raise NotThisMethod("'git describe' failed")
+    describe_out = describe_out.strip()
+    full_out, rc = runner(GITS, ["rev-parse", "HEAD"], cwd=root)
+    if full_out is None:
+        raise NotThisMethod("'git rev-parse' failed")
+    full_out = full_out.strip()
+
+    pieces: Dict[str, Any] = {}
+    pieces["long"] = full_out
+    pieces["short"] = full_out[:7]  # maybe improved later
+    pieces["error"] = None
+
+    branch_name, rc = runner(GITS, ["rev-parse", "--abbrev-ref", "HEAD"],
+                             cwd=root)
+    # --abbrev-ref was added in git-1.6.3
+    if rc != 0 or branch_name is None:
+        raise NotThisMethod("'git rev-parse --abbrev-ref' returned error")
+    branch_name = branch_name.strip()
+
+    if branch_name == "HEAD":
+        # If we aren't exactly on a branch, pick a branch which represents
+        # the current commit. If all else fails, we are on a branchless
+        # commit.
+        branches, rc = runner(GITS, ["branch", "--contains"], cwd=root)
+        # --contains was added in git-1.5.4
+        if rc != 0 or branches is None:
+            raise NotThisMethod("'git branch --contains' returned error")
+        branches = branches.split("\n")
+
+        # Remove the first line if we're running detached
+        if "(" in branches[0]:
+            branches.pop(0)
+
+        # Strip off the leading "* " from the list of branches.
+        branches = [branch[2:] for branch in branches]
+        if "master" in branches:
+            branch_name = "master"
+        elif not branches:
+            branch_name = None
+        else:
+            # Pick the first branch that is returned. Good or bad.
+            branch_name = branches[0]
+
+    pieces["branch"] = branch_name
+
+    # parse describe_out. It will be like TAG-NUM-gHEX[-dirty] or HEX[-dirty]
+    # TAG might have hyphens.
+    git_describe = describe_out
+
+    # look for -dirty suffix
+    dirty = git_describe.endswith("-dirty")
+    pieces["dirty"] = dirty
+    if dirty:
+        git_describe = git_describe[:git_describe.rindex("-dirty")]
+
+    # now we have TAG-NUM-gHEX or HEX
+
+    if "-" in git_describe:
+        # TAG-NUM-gHEX
+        mo = re.search(r'^(.+)-(\d+)-g([0-9a-f]+)$', git_describe)
+        if not mo:
+            # unparsable. Maybe git-describe is misbehaving?
+            pieces["error"] = ("unable to parse git-describe output: '%s'"
+                               % describe_out)
+            return pieces
+
+        # tag
+        full_tag = mo.group(1)
+        if not full_tag.startswith(tag_prefix):
+            if verbose:
+                fmt = "tag '%s' doesn't start with prefix '%s'"
+                print(fmt % (full_tag, tag_prefix))
+            pieces["error"] = ("tag '%s' doesn't start with prefix '%s'"
+                               % (full_tag, tag_prefix))
+            return pieces
+        pieces["closest-tag"] = full_tag[len(tag_prefix):]
+
+        # distance: number of commits since tag
+        pieces["distance"] = int(mo.group(2))
+
+        # commit: short hex revision ID
+        pieces["short"] = mo.group(3)
+
+    else:
+        # HEX: no tags
+        pieces["closest-tag"] = None
+        out, rc = runner(GITS, ["rev-list", "HEAD", "--left-right"], cwd=root)
+        pieces["distance"] = len(out.split())  # total number of commits
+
+    # commit date: see ISO-8601 comment in git_versions_from_keywords()
+    date = runner(GITS, ["show", "-s", "--format=%ci", "HEAD"], cwd=root)[0].strip()
+    # Use only the last line.  Previous lines may contain GPG signature
+    # information.
+    date = date.splitlines()[-1]
+    pieces["date"] = date.strip().replace(" ", "T", 1).replace(" ", "", 1)
+
+    return pieces
+
+
+def plus_or_dot(pieces: Dict[str, Any]) -> str:
+    """Return a + if we don't already have one, else return a ."""
+    if "+" in pieces.get("closest-tag", ""):
+        return "."
+    return "+"
+
+
+def render_pep440(pieces: Dict[str, Any]) -> str:
+    """Build up version string, with post-release "local version identifier".
+
+    Our goal: TAG[+DISTANCE.gHEX[.dirty]] . Note that if you
+    get a tagged build and then dirty it, you'll get TAG+0.gHEX.dirty
+
+    Exceptions:
+    1: no tags. git_describe was just HEX. 0+untagged.DISTANCE.gHEX[.dirty]
+    """
+    if pieces["closest-tag"]:
+        rendered = pieces["closest-tag"]
+        if pieces["distance"] or pieces["dirty"]:
+            rendered += plus_or_dot(pieces)
+            rendered += "%d.g%s" % (pieces["distance"], pieces["short"])
+            if pieces["dirty"]:
+                rendered += ".dirty"
+    else:
+        # exception #1
+        rendered = "0+untagged.%d.g%s" % (pieces["distance"],
+                                          pieces["short"])
+        if pieces["dirty"]:
+            rendered += ".dirty"
+    return rendered
+
+
+def render_pep440_branch(pieces: Dict[str, Any]) -> str:
+    """TAG[[.dev0]+DISTANCE.gHEX[.dirty]] .
+
+    The ".dev0" means not master branch. Note that .dev0 sorts backwards
+    (a feature branch will appear "older" than the master branch).
+
+    Exceptions:
+    1: no tags. 0[.dev0]+untagged.DISTANCE.gHEX[.dirty]
+    """
+    if pieces["closest-tag"]:
+        rendered = pieces["closest-tag"]
+        if pieces["distance"] or pieces["dirty"]:
+            if pieces["branch"] != "master":
+                rendered += ".dev0"
+            rendered += plus_or_dot(pieces)
+            rendered += "%d.g%s" % (pieces["distance"], pieces["short"])
+            if pieces["dirty"]:
+                rendered += ".dirty"
+    else:
+        # exception #1
+        rendered = "0"
+        if pieces["branch"] != "master":
+            rendered += ".dev0"
+        rendered += "+untagged.%d.g%s" % (pieces["distance"],
+                                          pieces["short"])
+        if pieces["dirty"]:
+            rendered += ".dirty"
+    return rendered
+
+
+def pep440_split_post(ver: str) -> Tuple[str, Optional[int]]:
+    """Split pep440 version string at the post-release segment.
+
+    Returns the release segments before the post-release and the
+    post-release version number (or -1 if no post-release segment is present).
+    """
+    vc = str.split(ver, ".post")
+    return vc[0], int(vc[1] or 0) if len(vc) == 2 else None
+
+
+def render_pep440_pre(pieces: Dict[str, Any]) -> str:
+    """TAG[.postN.devDISTANCE] -- No -dirty.
+
+    Exceptions:
+    1: no tags. 0.post0.devDISTANCE
+    """
+    if pieces["closest-tag"]:
+        if pieces["distance"]:
+            # update the post release segment
+            tag_version, post_version = pep440_split_post(pieces["closest-tag"])
+            rendered = tag_version
+            if post_version is not None:
+                rendered += ".post%d.dev%d" % (post_version + 1, pieces["distance"])
+            else:
+                rendered += ".post0.dev%d" % (pieces["distance"])
+        else:
+            # no commits, use the tag as the version
+            rendered = pieces["closest-tag"]
+    else:
+        # exception #1
+        rendered = "0.post0.dev%d" % pieces["distance"]
+    return rendered
+
+
+def render_pep440_post(pieces: Dict[str, Any]) -> str:
+    """TAG[.postDISTANCE[.dev0]+gHEX] .
+
+    The ".dev0" means dirty. Note that .dev0 sorts backwards
+    (a dirty tree will appear "older" than the corresponding clean one),
+    but you shouldn't be releasing software with -dirty anyways.
+
+    Exceptions:
+    1: no tags. 0.postDISTANCE[.dev0]
+    """
+    if pieces["closest-tag"]:
+        rendered = pieces["closest-tag"]
+        if pieces["distance"] or pieces["dirty"]:
+            rendered += ".post%d" % pieces["distance"]
+            if pieces["dirty"]:
+                rendered += ".dev0"
+            rendered += plus_or_dot(pieces)
+            rendered += "g%s" % pieces["short"]
+    else:
+        # exception #1
+        rendered = "0.post%d" % pieces["distance"]
+        if pieces["dirty"]:
+            rendered += ".dev0"
+        rendered += "+g%s" % pieces["short"]
+    return rendered
+
+
+def render_pep440_post_branch(pieces: Dict[str, Any]) -> str:
+    """TAG[.postDISTANCE[.dev0]+gHEX[.dirty]] .
+
+    The ".dev0" means not master branch.
+
+    Exceptions:
+    1: no tags. 0.postDISTANCE[.dev0]+gHEX[.dirty]
+    """
+    if pieces["closest-tag"]:
+        rendered = pieces["closest-tag"]
+        if pieces["distance"] or pieces["dirty"]:
+            rendered += ".post%d" % pieces["distance"]
+            if pieces["branch"] != "master":
+                rendered += ".dev0"
+            rendered += plus_or_dot(pieces)
+            rendered += "g%s" % pieces["short"]
+            if pieces["dirty"]:
+                rendered += ".dirty"
+    else:
+        # exception #1
+        rendered = "0.post%d" % pieces["distance"]
+        if pieces["branch"] != "master":
+            rendered += ".dev0"
+        rendered += "+g%s" % pieces["short"]
+        if pieces["dirty"]:
+            rendered += ".dirty"
+    return rendered
+
+
+def render_pep440_old(pieces: Dict[str, Any]) -> str:
+    """TAG[.postDISTANCE[.dev0]] .
+
+    The ".dev0" means dirty.
+
+    Exceptions:
+    1: no tags. 0.postDISTANCE[.dev0]
+    """
+    if pieces["closest-tag"]:
+        rendered = pieces["closest-tag"]
+        if pieces["distance"] or pieces["dirty"]:
+            rendered += ".post%d" % pieces["distance"]
+            if pieces["dirty"]:
+                rendered += ".dev0"
+    else:
+        # exception #1
+        rendered = "0.post%d" % pieces["distance"]
+        if pieces["dirty"]:
+            rendered += ".dev0"
+    return rendered
+
+
+def render_git_describe(pieces: Dict[str, Any]) -> str:
+    """TAG[-DISTANCE-gHEX][-dirty].
+
+    Like 'git describe --tags --dirty --always'.
+
+    Exceptions:
+    1: no tags. HEX[-dirty]  (note: no 'g' prefix)
+    """
+    if pieces["closest-tag"]:
+        rendered = pieces["closest-tag"]
+        if pieces["distance"]:
+            rendered += "-%d-g%s" % (pieces["distance"], pieces["short"])
+    else:
+        # exception #1
+        rendered = pieces["short"]
+    if pieces["dirty"]:
+        rendered += "-dirty"
+    return rendered
+
+
+def render_git_describe_long(pieces: Dict[str, Any]) -> str:
+    """TAG-DISTANCE-gHEX[-dirty].
+
+    Like 'git describe --tags --dirty --always -long'.
+    The distance/hash is unconditional.
+
+    Exceptions:
+    1: no tags. HEX[-dirty]  (note: no 'g' prefix)
+    """
+    if pieces["closest-tag"]:
+        rendered = pieces["closest-tag"]
+        rendered += "-%d-g%s" % (pieces["distance"], pieces["short"])
+    else:
+        # exception #1
+        rendered = pieces["short"]
+    if pieces["dirty"]:
+        rendered += "-dirty"
+    return rendered
+
+
+def render(pieces: Dict[str, Any], style: str) -> Dict[str, Any]:
+    """Render the given version pieces into the requested style."""
+    if pieces["error"]:
+        return {"version": "unknown",
+                "full-revisionid": pieces.get("long"),
+                "dirty": None,
+                "error": pieces["error"],
+                "date": None}
+
+    if not style or style == "default":
+        style = "pep440"  # the default
+
+    if style == "pep440":
+        rendered = render_pep440(pieces)
+    elif style == "pep440-branch":
+        rendered = render_pep440_branch(pieces)
+    elif style == "pep440-pre":
+        rendered = render_pep440_pre(pieces)
+    elif style == "pep440-post":
+        rendered = render_pep440_post(pieces)
+    elif style == "pep440-post-branch":
+        rendered = render_pep440_post_branch(pieces)
+    elif style == "pep440-old":
+        rendered = render_pep440_old(pieces)
+    elif style == "git-describe":
+        rendered = render_git_describe(pieces)
+    elif style == "git-describe-long":
+        rendered = render_git_describe_long(pieces)
+    else:
+        raise ValueError("unknown style '%s'" % style)
+
+    return {"version": rendered, "full-revisionid": pieces["long"],
+            "dirty": pieces["dirty"], "error": None,
+            "date": pieces.get("date")}
+
+
+def get_versions() -> Dict[str, Any]:
+    """Get version information or return default if unable to do so."""
     # I am in _version.py, which lives at ROOT/VERSIONFILE_SOURCE. If we have
     # __file__, we can work backwards from there to the root. Some
     # py2exe/bbfreeze/non-CPython implementations don't do __file__, in which
     # case we can only use expanded keywords.
 
-    keywords = { "refnames": git_refnames, "full": git_full }
-    ver = git_versions_from_keywords(keywords, tag_prefix, verbose)
-    if ver:
-        return ver
+    cfg = get_config()
+    verbose = cfg.verbose
+
+    try:
+        return git_versions_from_keywords(get_keywords(), cfg.tag_prefix,
+                                          verbose)
+    except NotThisMethod:
+        pass
 
     try:
-        root = os.path.abspath(__file__)
+        root = os.path.realpath(__file__)
         # versionfile_source is the relative path from the top of the source
         # tree (where the .git directory might live) to this file. Invert
         # this to find the root from __file__.
-        for i in range(len(versionfile_source.split(os.sep))):
+        for _ in cfg.versionfile_source.split('/'):
             root = os.path.dirname(root)
     except NameError:
-        return default
+        return {"version": "0+unknown", "full-revisionid": None,
+                "dirty": None,
+                "error": "unable to find root of source tree",
+                "date": None}
+
+    try:
+        pieces = git_pieces_from_vcs(cfg.tag_prefix, root, verbose)
+        return render(pieces, cfg.style)
+    except NotThisMethod:
+        pass
+
+    try:
+        if cfg.parentdir_prefix:
+            return versions_from_parentdir(cfg.parentdir_prefix, root, verbose)
+    except NotThisMethod:
+        pass
 
-    return (git_versions_from_vcs(tag_prefix, root, verbose)
-            or versions_from_parentdir(parentdir_prefix, root, verbose)
-            or default)
+    return {"version": "0+unknown", "full-revisionid": None,
+            "dirty": None,
+            "error": "unable to compute version", "date": None}
diff --git a/cloudmap/create_map.py b/cloudmap/create_map.py
index dcf9645..ce8e773 100644
--- a/cloudmap/create_map.py
+++ b/cloudmap/create_map.py
@@ -7,11 +7,10 @@
 import argparse
 import configparser
 import os
-import sys
 import timeit
 import logging
 
-from .__init__ import Satellites, __version__
+from .__init__ import CloudMap, __version__
 
 
 def main():
@@ -25,7 +24,7 @@ def main():
 
     tic = timeit.default_timer()
     parser = argparse.ArgumentParser()
-    parser.add_argument("-d", "--debug", help="store intermediate results",
+    parser.add_argument("-d", "--debug", help="debug outputs",
                         action="store_true")
     parser.add_argument("-c", "--conf_file", help="Specify config file",
                         metavar="FILE",
@@ -33,9 +32,6 @@ def main():
                             "~/.CreateCloudMap/CreateCloudMap.ini"))
     parser.add_argument("-f", "--force", help="Force to recreate cloud map",
                         action="store_true")
-    parser.add_argument("-m", "--max_age", help="Maximal age of satellite " +
-                        "images to download", type=int,
-                        default=200, required=False)
     parser.add_argument('-V', '--version', action='version',
                         version=__version__)
     args = parser.parse_args()
@@ -43,20 +39,10 @@ def main():
         {'width': '2048',
          'height': '1024',
          'destinationfile': 'clouds_2048.jpg',
-         'resolution': 'medium',
-         'purge': 'false',
-         'nprocs': '1',
-         'projection': 'pyresample'
          }
         )
     config.read([args.conf_file])
 
-    username = config.get("Download", 'username')
-    password = config.get("Download", 'password')
-    tempdir = config.get("Download", 'tempdir')
-    resolution = config.get("Download", 'resolution')
-    purge = config.get("Download", 'purge').lower() == 'true'
-
     outdir = config.get("xplanet", 'destinationdir')
     outfile = config.get("xplanet", 'destinationfile')
 
@@ -65,47 +51,12 @@ def main():
     else:
         logger.setLevel(logging.INFO)
 
-    try:
-        nprocs = int(config.get("processing", 'nprocs'))
-    except (configparser.NoSectionError, configparser.NoOptionError):
-        nprocs = 1
-
-    try:
-        Satellites.projection_method =\
-            config.get("processing", 'projection')
-    except (configparser.NoSectionError, configparser.NoOptionError):
-        Satellites.projection_method = 'pyresample'
-
-    if Satellites.projection_method not in ['cartopy', 'pyresample']:
-        logger.error("Incorrect projection library setting: %s" %
-                     Satellites.projection_method)
-        logger.error("Use either pyresample or cartopy")
-        sys.exit(1)
-
-    Satellites.outwidth = int(config.get("xplanet", 'width'))
-    Satellites.outheight = int(config.get("xplanet", 'height'))
-
-    satellite_list = Satellites(resolution, username, password,
-                                tempdir, nprocs, args.debug)
-    dt = satellite_list.find_latest(args.max_age)
-
-    logger.info("Download image date/time: %s" %
-                dt.strftime("%Y-%m-%d %H:00 UTC"))
-
-    latest_download = satellite_list.download(purge)
+    outwidth = int(config.get("xplanet", 'width'))
+    outheight = int(config.get("xplanet", 'height'))
 
-    # Stop here if downloaded satellite images are older than
-    # current cloud image
-    if (
-        not args.force and
-        os.path.isfile(os.path.join(outdir, outfile)) and
-        (os.path.getmtime(os.path.join(outdir, outfile))
-         > latest_download)
-    ):
-        sys.exit(0)
+    satellite_list = CloudMap(outwidth, outheight)
 
-    satellite_list.overlay(args.debug)
-    satellite_list.save_image(outdir, outfile)
+    satellite_list.download(outdir, outfile, args.force)
 
     toc = timeit.default_timer()
 
diff --git a/cloudmap/geo_dundee.py b/cloudmap/geo_dundee.py
deleted file mode 100644
index cee35d3..0000000
--- a/cloudmap/geo_dundee.py
+++ /dev/null
@@ -1,290 +0,0 @@
-from __future__ import print_function
-from __future__ import unicode_literals
-from __future__ import absolute_import
-from __future__ import division
-
-from io import BytesIO
-import numpy as np
-import requests
-import os
-import datetime
-import glob
-from PIL import Image
-import sys
-import logging
-
-
-class GeoSatelliteDataDundee(object):
-
-    """
-    A class to download and process satellite image
-    """
-
-    def __init__(self, longitude, limit, rescale, base_url, suffix,
-                 resolution, resolution_str, resolution_mult, debug=False):
-        """
-        Args:
-
-            * longitude:
-                the longitude the satellite is positioned
-            * limit:
-                borders of the real satellite data in the
-                downloaded image
-            * rescale:
-                function to rescale image colors (if not the
-                full color space is used)
-            * base_url:
-                the url the image to download
-            * suffix:
-                suffix of the image name
-            * resolution:
-                resolution of the image to be downloaded (low, medium, high)
-        """
-
-        self.debug = debug
-        self.logger = logging.getLogger('create_map_logger')
-
-        try:
-            resfile = resolution_str[resolution]
-            self.resolution_mult = resolution_mult[resolution]
-        except KeyError:
-            sys.exit('Wrong resolution specified in config file! ' +
-                     resolution +
-                     ' Valid values are: low, medium, high')
-
-        self.longitude = longitude
-        self.limit = limit
-        self.rescale = rescale
-        self.base_url = "http://www.sat.dundee.ac.uk/xrit/" + base_url
-        if self.debug:
-            self.suffix = suffix + resfile + "_grid.jpeg"
-        else:
-            self.suffix = suffix + resfile + ".jpeg"
-
-        self.filemodtime = 0
-        self.outwidth = 0
-        self.outheight = 0
-        self.projection_method = "pyresample"
-
-    def login(self, username, password):
-        """
-        Setup login data
-
-        Args:
-            * username:
-                username of Dundee accoun
-            * password:
-                password of Dundee accoun
-        """
-        self.username = username
-        self.password = password
-
-#     @staticmethod
-#     def curve(b):
-#         """Rescale the brightness values used for MTSAT2 satellite"""
-#         return np.minimum(b * 255.0 / 193.0, 255)
-#
-#     @staticmethod
-#     def ID(b):
-#         """Identity function"""
-#         return b
-
-    def set_time(self, dt, tempdir=""):
-        """
-        Setup satellite download image name based on time
-
-        Args:
-            * dt:
-                datetime representation of time satellite image was taken
-            * tempdir:
-                directory to store downloaded images
-        """
-
-        satellite_interval_in_h = 3
-
-        self.dt = datetime.datetime(dt.year, dt.month, dt.day,
-                                    int((dt.hour // satellite_interval_in_h) *
-                                        satellite_interval_in_h), 0, 0)
-        day = self.dt.strftime("%d").lstrip("0")
-        month = self.dt.strftime("%m").lstrip("0")
-        hour = self.dt.strftime("%H").lstrip("0")
-        if not hour:  # if hour empty then assume midnight
-            str1 = self.dt.strftime("%Y/") + month + "/" + day + "/" + "0/"
-            str2 = self.dt.strftime("%Y_") + month + "_" + day + "_" + "0"
-        else:
-            str1 = self.dt.strftime("%Y/") + month + "/" + day + \
-                "/" + hour + "00/"
-            str2 = self.dt.strftime("%Y_") + month + "_" + day + \
-                "_" + hour + "00"
-        str3 = "*_*_*_*"
-        self.url = self.base_url + str1 + str2 + self.suffix
-        self.filename = os.path.join(tempdir, str2 + self.suffix)
-        self.purge_pattern = os.path.join(tempdir, str3 + self.suffix)
-
-    def purge(self):
-        """Remove old satellite images"""
-        for fl in glob.glob(self.purge_pattern):
-            if fl == self.filename:
-                continue
-            os.remove(fl)
-
-    def check_for_image(self):
-        """
-        Test if image has already be downloaded or that it can be
-        downloaded from the Dundee server
-        """
-        if os.path.isfile(self.filename):
-            self.logger.debug("found image: %s" % self.filename)
-            return True
-        r = requests.head(self.url, auth=(self.username, self.password))
-        if r.status_code == requests.codes.ok:  # @UndefinedVariable
-            self.logger.debug("can download image: %s" % self.url)
-            return True
-        else:
-            self.logger.debug("cannot download image: %s" % self.url)
-            return False
-
-    def download_image(self):
-        """Download the image if it has not been downloaded before"""
-        if os.path.isfile(self.filename):
-            self.logger.debug("image has already been downloaded: %s" %
-                              self.filename)
-            self.filemodtime = os.path.getmtime(self.filename)
-            return
-        self.logger.info("download image: %s" % self.url)
-        r = requests.get(self.url, auth=(self.username, self.password))
-        i = Image.open(BytesIO(r.content))
-        i.save(self.filename)
-        self.filemodtime = os.path.getmtime(self.filename)
-
-    def cut_borders(self, data):
-        """Remove the white border of a satellite images (including text)"""
-
-        l = {}
-        l.update((x, y * self.resolution_mult) for x, y in self.limit.items())
-        return data[l['top']:l['bottom'], l['left']:l['right']]
-
-    def project(self):
-        if self.projection_method == "pyresample":
-            return self.project_pyresample()
-        else:
-            return self.project_cartopy()
-
-    def project_cartopy(self):
-        """
-        Reproject the satellite image on an equirectangular map using the
-        cartopy library
-        """
-        import cartopy.crs as ccrs
-        from cartopy.img_transform import warp_array
-
-        img = Image.open(self.filename).convert("L")
-        self.data = self.cut_borders(np.array(img))
-
-        width = self.outwidth
-        height = self.outheight
-
-        buf, _extent = \
-            warp_array(self.data,
-                       source_proj=ccrs.Geostationary(
-                           central_longitude=self.longitude,
-                           satellite_height=35785831.0
-                       ),
-                       target_proj=ccrs.PlateCarree(),
-                       target_res=(width, height))
-
-        dataResampledImage = self.rescale(buf.data)
-        dataResampledImage = self.polar_clouds(dataResampledImage)
-        weight = self.get_weight()
-
-        result = np.array([dataResampledImage, weight])
-        return result
-
-    def get_weight(self):
-        """Get weighting function for satellite image for overlaying"""
-        weight_width = 55
-        small = 1e-7
-        weight = np.array([max((weight_width -
-                                min([abs(self.longitude - x),
-                                    abs(self.longitude - x + 360),
-                                    abs(self.longitude - x - 360)])) / 180,
-                               small)
-                           for x in np.linspace(-180,
-                                                180,
-                                                self.outwidth)])
-
-        weight = np.array([weight *
-                           max(small,
-                               1 - 9/7 *
-                               abs(i - self.outheight/2)/self.outheight*2)**0.5
-                           for i in range(self.outheight)])
-
-        return weight
-
-    def project_pyresample(self):
-        """
-        Reproject the satellite image on an equirectangular map using the
-        pyresample library
-        """
-
-        from pyresample import image, geometry
-        from .satellites import pc
-
-        img = Image.open(self.filename).convert("L")
-        self.logger.debug("image size uncut: %s" % (np.array(img).shape,))
-
-        self.data = self.cut_borders(np.array(img))
-
-        self.logger.debug("image size cut:  %s" % (self.data.shape,))
-
-        x_size = self.data.shape[1]
-        y_size = self.data.shape[0]
-        proj_dict = {'a': '6378137.0', 'b': '6356752.3',
-                     'lon_0': self.longitude,
-                     'h': '35785831.0', 'proj': 'geos'}
-        self.extent = 5568742.4 * 0.964
-        area_extent = (-self.extent, -self.extent,
-                       self.extent, self.extent)
-        area = geometry.AreaDefinition('geo', 'geostat', 'geo',
-                                       proj_dict, x_size,
-                                       y_size, area_extent)
-        dataIC = image.ImageContainerQuick(self.data, area)
-
-        dataResampled = dataIC.resample(pc(self.outwidth,
-                                           self.outheight))
-        dataResampledImage = self.rescale(dataResampled.image_data)
-        dataResampledImage = self.polar_clouds(dataResampledImage)
-        weight = self.get_weight()
-
-        self.logger.debug("image max: %d" % np.max(dataResampledImage))
-
-        result = np.array([dataResampledImage, weight])
-        return result
-
-    def polar_clouds(self, dataResampledImage):
-        # create fantasy polar clouds by mirroring high latitude data
-        polar_height = int(95.0 / 1024.0 * self.outheight)
-        north_pole_indices = range(0, polar_height)
-        north_pole_copy_indices = range(2 * polar_height, polar_height, -1)
-        dataResampledImage[north_pole_indices, :] =\
-            dataResampledImage[north_pole_copy_indices, :]
-        south_pole_indices = range(self.outheight - polar_height,
-                                   self.outheight)
-        south_pole_copy_indices = range(self.outheight - polar_height,
-                                        self.outheight - 2 * polar_height,
-                                        -1)
-        dataResampledImage[south_pole_indices, :] = \
-            dataResampledImage[south_pole_copy_indices, :]
-        return dataResampledImage
-
-    # https://stackoverflow.com/a/26063379
-    def __getstate__(self):
-        d = self.__dict__.copy()
-        if 'logger' in d:
-            d['logger'] = d['logger'].name
-        return d
-
-    def __setstate__(self, d):
-        if 'logger' in d:
-            d['logger'] = logging.getLogger(d['logger'])
-        self.__dict__.update(d)
diff --git a/cloudmap/geo_jma.py b/cloudmap/geo_jma.py
deleted file mode 100644
index ead794f..0000000
--- a/cloudmap/geo_jma.py
+++ /dev/null
@@ -1,256 +0,0 @@
-from __future__ import print_function
-from __future__ import unicode_literals
-from __future__ import absolute_import
-from __future__ import division
-
-from io import BytesIO
-import numpy as np
-import requests
-import os
-import datetime
-import glob
-from PIL import Image
-import sys
-import logging
-
-
-class GeoSatelliteDataJMA(object):
-
-    """
-    A class to download and process satellite image
-    """
-
-    def __init__(self, longitude, limit, rescale, base_url, suffix,
-                 resolution, debug=False):
-        """
-        Args:
-
-            * longitude:
-                the longitude the satellite is positioned
-            * limit:
-                borders of the real satellite data in the
-                downloaded image
-            * rescale:
-                function to rescale image colors (if not the
-                full color space is used)
-            * base_url:
-                the url the image to download
-            * suffix:
-                suffix of the image name
-            * resolution:
-                resolution of the image to be downloaded (low, medium, high)
-        """
-
-        resolution_str = {'low': '1/',
-                          'medium': '1/',
-                          'high': '0/'}
-        resolution_mult = {'low': 1,
-                           'medium': 1,
-                           'high': 1}
-
-        self.debug = debug
-        self.logger = logging.getLogger('create_map_logger')
-
-        try:
-            resfile = resolution_str[resolution]
-            self.resolution_mult = resolution_mult[resolution]
-        except KeyError:
-            sys.exit('Wrong resolution specified in config file! ' +
-                     resolution +
-                     ' Valid values are: medium, high')
-
-        self.longitude = longitude
-        self.limit = limit
-        self.rescale = rescale
-        self.base_url = "http://www.jma.go.jp/en/gms/imgs_c/6/infrared/" + \
-            base_url + resfile
-        self.suffix = suffix + ".png"
-        self.filemodtime = 0
-        self.outwidth = 0
-        self.outheight = 0
-        self.projection_method = "pyresample"
-
-    def login(self, username, password):
-        pass
-#     @staticmethod
-#     def curve(b):
-#         """Rescale the brightness values used for MTSAT2 satellite"""
-#         return np.minimum(b * 255.0 / 193.0, 255)
-#
-#     @staticmethod
-#     def ID(b):
-#         """Identity function"""
-#         return b
-
-    def set_time(self, dt, tempdir=""):
-        """
-        Setup satellite download image name based on time
-
-        Args:
-            * dt:
-                datetime representation of time satellite image was taken
-            * tempdir:
-                directory to store downloaded images
-        """
-        self.dt = datetime.datetime(dt.year, dt.month, dt.day,
-                                    int((dt.hour // 3) * 3), 0, 0)
-
-        str1 = self.dt.strftime("%Y%m%d%H00")
-        str3 = "????????????"
-        self.url = self.base_url + str1 + self.suffix
-        self.filename = os.path.join(tempdir, str1 + self.suffix)
-        self.purge_pattern = os.path.join(tempdir, str3 + self.suffix)
-
-    def purge(self):
-        """Remove old satellite images"""
-        for fl in glob.glob(self.purge_pattern):
-            if fl == self.filename:
-                continue
-            os.remove(fl)
-
-    def check_for_image(self):
-        """
-        Test if image has already be downloaded or that it can be
-        downloaded from the Dundee server
-        """
-        if os.path.isfile(self.filename):
-            self.logger.debug("found image: %s" % self.filename)
-            return True
-        r = requests.head(self.url)
-        if r.status_code == requests.codes.ok:  # @UndefinedVariable
-            self.logger.debug("can download image: %s" % self.url)
-            return True
-        else:
-            self.logger.debug("cannot download image: %s" % self.url)
-            return False
-
-    def download_image(self):
-        """Download the image if it has not been downloaded before"""
-        if os.path.isfile(self.filename):
-            self.logger.debug("image has alread been downloaded: %s" %
-                              self.filename)
-            self.filemodtime = os.path.getmtime(self.filename)
-            return
-        self.logger.info("download image: %s" % self.url)
-        r = requests.get(self.url)
-        i = Image.open(BytesIO(r.content))
-        i.save(self.filename)
-        self.filemodtime = os.path.getmtime(self.filename)
-
-    def cut_borders(self, data):
-        """Remove the white border of a satellite images (including text)"""
-
-        l = {}
-        l.update((x, y * self.resolution_mult) for x, y in self.limit.items())
-        return data[l['top']:l['bottom'], l['left']:l['right']]
-
-    def project(self):
-        if self.projection_method == "pyresample":
-            return self.project_pyresample()
-        else:
-            return self.project_cartopy()
-
-    def project_cartopy(self):
-        """
-        Reproject the satellite image on an equirectangular map using the
-        cartopy library
-        """
-        import cartopy.crs as ccrs
-        from cartopy.img_transform import warp_array
-
-        self.load_image()
-
-        width = self.outwidth
-        height = self.outheight
-
-        buf, _extent = \
-            warp_array(self.data,
-                       source_proj=ccrs.Geostationary(
-                           central_longitude=self.longitude,
-                           satellite_height=35785831.0
-                       ),
-                       target_proj=ccrs.PlateCarree(),
-                       target_res=(width, height))
-
-        dataResampledImage = self.rescale(buf.data)
-        dataResampledImage = self.polar_clouds(dataResampledImage)
-        weight = self.get_weight()
-
-        result = np.array([dataResampledImage, weight])
-        return result
-
-    def get_weight(self):
-        """Get weighting function for satellite image for overlaying"""
-        weight_width = 55
-        weight = np.array([max((weight_width -
-                                min([abs(self.longitude - x),
-                                    abs(self.longitude - x + 360),
-                                    abs(self.longitude - x - 360)])) / 180,
-                               1e-7)
-                           for x in np.linspace(-180,
-                                                180,
-                                                self.outwidth)])
-
-        weight = np.array([weight *
-                           max(1e-7,
-                               1 - 9/7 *
-                               abs(i - self.outheight/2)/self.outheight*2)**0.5
-                           for i in range(self.outheight)])
-
-        return weight
-
-    def project_pyresample(self):
-        """
-        Reproject the satellite image on an equirectangular map using the
-        pyresample library
-        """
-
-        from pyresample import image, geometry
-        from .satellites import pc
-
-        self.load_image()
-
-        x_size = self.data.shape[1]
-        y_size = self.data.shape[0]
-        proj_dict = {'a': '6378137.0', 'b': '6356752.3',
-                     'lon_0': self.longitude,
-                     'h': '35785831.0', 'proj': 'geos'}
-        self.extent = 5568742.4 * 0.964
-        area_extent = (-self.extent, -self.extent,
-                       self.extent, self.extent)
-        area = geometry.AreaDefinition('geo', 'geostat', 'geo',
-                                       proj_dict, x_size,
-                                       y_size, area_extent)
-        dataIC = image.ImageContainerQuick(self.data, area)
-
-        dataResampled = dataIC.resample(pc(self.outwidth,
-                                           self.outheight))
-        dataResampledImage = self.rescale(dataResampled.image_data)
-        dataResampledImage = self.polar_clouds(dataResampledImage)
-        weight = self.get_weight()
-
-        self.logger.debug("image max: %r" % np.max(dataResampledImage))
-
-        result = np.array([dataResampledImage, weight])
-        return result
-
-    def polar_clouds(self, dataResampledImage):
-        # create fantasy polar clouds by mirroring high latitude data
-        polar_height = int(95.0 / 1024.0 * self.outheight)
-        north_pole_indices = range(0, polar_height)
-        north_pole_copy_indices = range(2 * polar_height, polar_height, -1)
-        dataResampledImage[north_pole_indices, :] =\
-            dataResampledImage[north_pole_copy_indices, :]
-        south_pole_indices = range(self.outheight - polar_height,
-                                   self.outheight)
-        south_pole_copy_indices = range(self.outheight - polar_height,
-                                        self.outheight - 2 * polar_height,
-                                        -1)
-        dataResampledImage[south_pole_indices, :] = \
-            dataResampledImage[south_pole_copy_indices, :]
-        return dataResampledImage
-
-    def load_image(self):
-        img = Image.open(self.filename)
-        red, green, blue = img.split()
-        self.data = self.cut_borders(np.array(red))
diff --git a/cloudmap/live_cloud_maps.py b/cloudmap/live_cloud_maps.py
new file mode 100644
index 0000000..77c9c10
--- /dev/null
+++ b/cloudmap/live_cloud_maps.py
@@ -0,0 +1,94 @@
+from pathlib import Path
+import requests
+from datetime import datetime, timezone
+from dateutil import parser
+import json
+import os
+import logging
+
+
+class CloudMap(object):
+
+    """
+    Class to download and process the could map from clouds.matteason.co.uk
+    """
+
+    available_resolutions = [
+        (1024, 512),
+        (2048, 1024),
+        (4096, 2048),
+        (8192, 4096),
+    ]
+
+    def __init__(self, outwidth, outheight):
+        """
+        Args:
+            * outwidth:
+                width of the downloaded cloud map
+            * outheight:
+                height of the downloaded cloud map
+            * debug
+                print debug outputs
+        """
+
+        self.logger = logging.getLogger('create_map_logger')
+
+        if (outwidth, outheight) not in CloudMap.available_resolutions:
+            self.logger.error(
+                f'{outwidth}, {outheight} no valid resolution!\n' +
+                f'resolutions available: {CloudMap.available_resolutions}'
+            )
+            raise ValueError(f'{outwidth}, {outheight} no valid resolution')
+
+        self._url = (
+            'https://clouds.matteason.co.uk/images/' +
+            f'{outwidth}x{outheight}/clouds.jpg'
+        )
+
+    def download(self, outdir, outfile, force):
+        """
+        Download cloud map
+
+        Args:
+            * outdir:
+                Directory the image should be saved in
+            * outfile:
+                Filename of the image
+            * force:
+                Force reloading the image
+        """
+
+        Path(outdir).mkdir(parents=True, exist_ok=True)
+
+        response = requests.head(self._url, allow_redirects=True, timeout=10)
+        self.logger.debug(json.dumps(dict(response.headers), indent=4))
+
+        out_path = outdir / Path(outfile)
+        new_time = parser.parse(response.headers['last-modified'])
+
+        if force:
+            self.logger.info(f'{out_path} forcefully downloaded')
+            out_path.unlink(missing_ok=True)
+            self._download_image(self._url, out_path, new_time)
+        elif not out_path.exists():
+            self.logger.debug(f'{out_path} not found')
+            self._download_image(self._url, out_path, new_time)
+        else:
+            old_time = datetime.fromtimestamp(
+                out_path.stat().st_mtime, tz=timezone.utc
+            )
+            if new_time > old_time:
+                out_path.unlink()
+                self.logger.debug(f'{out_path} too old')
+                self._download_image(self._url, out_path, new_time)
+            else:
+                self.logger.info(f'{out_path} is new enough')
+
+    def _download_image(self, t, out_file, d):
+        r = requests.get(t, allow_redirects=True, timeout=20)
+        self.logger.debug(f'{t}: length: {len(r.content)}')
+        with open(out_file, 'wb') as f:
+            f.write(r.content)
+        os.utime(out_file, (d.timestamp(), d.timestamp()))
+        r.close()
+        self.logger.debug(f'downloaded {out_file}')
diff --git a/cloudmap/mkdir.py b/cloudmap/mkdir.py
deleted file mode 100644
index 78048b1..0000000
--- a/cloudmap/mkdir.py
+++ /dev/null
@@ -1,17 +0,0 @@
-from __future__ import print_function
-from __future__ import unicode_literals
-from __future__ import absolute_import
-from __future__ import division
-import os
-import errno
-
-
-def mkdir_p(path):
-    """Equivalent for unix command mkdir -p"""
-    try:
-        os.makedirs(path)
-    except OSError as exc:  # Python >2.5
-        if exc.errno == errno.EEXIST and os.path.isdir(path):
-            pass
-        else:
-            raise
diff --git a/cloudmap/polar.py b/cloudmap/polar.py
deleted file mode 100644
index b32dba0..0000000
--- a/cloudmap/polar.py
+++ /dev/null
@@ -1,238 +0,0 @@
-from __future__ import print_function
-from __future__ import unicode_literals
-from __future__ import absolute_import
-from __future__ import division
-
-from io import BytesIO
-import numpy as np
-import requests
-import os
-import datetime
-import glob
-from PIL import Image
-from numpy.core.umath import sign
-
-
-class PolarSatelliteData(object):
-
-    """
-    A class to download and process satellite image
-    """
-
-    def __init__(self, longitude, latitude, extent,
-                 base_url, rescale, weight_width, suffix, debug):
-        """
-        Args:
-
-            * longitude:
-                the longitude the satellite is positioned
-            * latitude:
-                the latitude, i.e. the pole used for the stereographic
-                projection
-            * extent:
-                the limits of the area covered by the satellite image
-            * base_url:
-                the url the image to download
-        """
-
-        self.longitude = longitude
-        self.latitude = latitude
-        self.extent = extent
-        self.base_url = "https://www.aviationweather.gov/data/obs/sat/intl/"
-        self.suffix = suffix + ".jpg"
-        self.rescale = rescale
-        self.filemodtime = 0
-        self.outwidth = 0
-        self.outheight = 0
-        self.weight_width = weight_width
-        self.projection_method = "pyresample"
-        self.debug = debug
-
-    def login(self, username, password):
-        pass
-
-    def set_time(self, dt, tempdir=""):
-        """
-        Setup satellite download image name based on time
-
-        Args:
-            * dt:
-                datetime representation of time satellite image was taken
-            * tempdir:
-                directory to store downloaded images
-        """
-        self.dt = datetime.datetime(dt.year, dt.month, dt.day,
-                                    int((dt.hour // 3) * 3), 0, 0)
-        day = self.dt.strftime("%d").lstrip("0")
-        month = self.dt.strftime("%m").lstrip("0")
-        hour = self.dt.strftime("%H").lstrip("0")
-        if not hour:  # if hour empty then assume midnight
-            str1 = self.dt.strftime("%Y/") + month + "/" + day + "/" + "0/"
-            str2 = self.dt.strftime("%Y_") + month + "_" + day + "_" + "0"
-        else:
-            str1 = self.dt.strftime("%Y/") + month + "/" + day + \
-                "/" + hour + "00/"
-            str2 = self.dt.strftime("%Y_") + month + "_" + day + \
-                "_" + hour + "00"
-        str2 = '20151204_1815'
-        str3 = "*_*"
-        self.url = self.base_url + str2 + self.suffix
-        self.filename = os.path.join(tempdir, str2 + self.suffix)
-        self.purge_pattern = os.path.join(tempdir, str3 + self.suffix)
-
-    def purge(self):
-        """Remove old satellite images"""
-        for fl in glob.glob(self.purge_pattern):
-            if fl == self.filename:
-                continue
-            os.remove(fl)
-
-    def check_for_image(self):
-        """
-        Test if image has already be downloaded or that it can be
-        downloaded from the Dundee server
-        """
-        if os.path.isfile(self.filename):
-            self.logger.debug("found image: %s" % self.filename)
-            return True
-        r = requests.head(self.url)
-        if r.status_code == requests.codes.ok:  # @UndefinedVariable
-            self.logger.debug("can download image: %s" % self.url)
-            return True
-        else:
-            self.logger.debug("cannot download image: %s" % self.url)
-            return False
-
-    def download_image(self):
-        """Download the image if it has not been downloaded before"""
-        if os.path.isfile(self.filename):
-            self.logger.debug("image has already been downloaded: %s" %
-                              self.filename)
-            self.filemodtime = os.path.getmtime(self.filename)
-            return
-        self.logger.info("download image: %s" % self.url)
-        r = requests.get(self.url)
-        i = Image.open(BytesIO(r.content))
-        i.save(self.filename)
-        self.filemodtime = os.path.getmtime(self.filename)
-
-    def cut_borders(self, pil_im):
-        """Remove the white border of a satellite images (including text)"""
-        w, h = pil_im.size
-        pil_im = pil_im.crop((0, 12, w, h))
-
-        return pil_im
-
-    def project(self):
-        if self.projection_method == "pyresample":
-            return self.project_pyresample()
-        else:
-            return self.project_cartopy()
-
-    def project_cartopy(self):
-        """
-        Reproject the satellite image on an equirectangular map using the
-        cartopy library
-        """
-        import cartopy.crs as ccrs
-        from cartopy.img_transform import warp_array
-
-        img = Image.open(self.filename).convert("L")
-        self.data = self.cut_borders(img)
-
-        width = self.outwidth
-        height = self.outheight
-
-        buf, _extent = \
-            warp_array(self.data,
-                       source_proj=ccrs.Geostationary(
-                           central_longitude=self.longitude,
-                           satellite_height=35785831.0
-                       ),
-                       target_proj=ccrs.PlateCarree(),
-                       target_res=(width, height))
-
-        dataResampledImage = self.rescale(buf.data)
-#         dataResampledImage = self.polar_clouds(dataResampledImage)
-        weight = self.get_weight()
-
-        result = np.array([dataResampledImage, weight])
-        return result
-
-    def get_weight(self):
-        """Get weighting function for satellite image for overlaying"""
-
-        weight = np.array([max((self.weight_width -
-                                min([abs(self.longitude - x),
-                                    abs(self.longitude - x + 360),
-                                    abs(self.longitude - x - 360)])) / 180,
-                               1e-7)
-                           for x in np.linspace(-180,
-                                                180,
-                                                self.outwidth)])
-
-        weight = np.array([1/(2.5/9) * weight *
-                           max(1e-7,
-                               -sign(self.latitude) *
-                               (i - self.outheight/2)/self.outheight*2 -
-                               6.5/9)
-                           for i in range(self.outheight)])
-
-        return weight
-
-    def project_pyresample(self):
-        """
-        Reproject the satellite image on an equirectangular map using the
-        pyresample library
-        """
-
-        from pyresample import image, geometry
-        from .satellites import pc
-        from PIL import ImageFilter
-
-        img = Image.open(self.filename).convert("L")
-        img = self.cut_borders(img)
-
-        # round away grid
-        im2 = img.filter(ImageFilter.MedianFilter(3))
-        # create mask for borders
-        mask = img.point(lambda x: 0 if x < 250 else 255).filter(
-            ImageFilter.FIND_EDGES).filter(ImageFilter.MaxFilter(3))
-
-        # create replacement picture with borders smoothed way
-        # picture_count += 1
-        im3 = im2.filter(ImageFilter.MinFilter(7))
-
-        im4 = Image.composite(im3, im2, mask)
-        self.data = np.array(im4)
-
-        self.x_size = self.data.shape[1]
-        self.y_size = self.data.shape[0]
-        proj_dict = {'lon_0': self.longitude,
-                     'lat_0': self.latitude,
-                     'proj': 'stere',
-                     'ellps': 'WGS84',
-                     'units': 'm'}
-        area = geometry.AreaDefinition('stere', 'stere', 'stere',
-                                       proj_dict,
-                                       self.x_size,
-                                       self.y_size,
-                                       self.extent)
-
-        dataIC = image.ImageContainerQuick(self.data, area)
-        dataResampled = dataIC.resample(pc(self.outwidth,
-                                           self.outheight))
-        dataResampledImage = self.rescale(dataResampled.image_data)
-#        dataResampledImage = np.ones(shape=dataResampledImage.shape) * 1e-7
-
-        weightResampledImage = self.get_weight()
-#         weightIC = image.ImageContainerQuick(weight, area)
-#         weightResampled = weightIC.resample(pc(self.outwidth,
-#                                             self.outheight))
-#         weightResampledImage = weightResampled.image_data
-#         dataResampledImage = self.polar_clouds(dataResampledImage)
-
-        self.logger.info("image max: %r" % np.max(dataResampledImage))
-
-        result = np.array([dataResampledImage, weightResampledImage])
-        return result
diff --git a/cloudmap/satellites.py b/cloudmap/satellites.py
deleted file mode 100644
index a803aa1..0000000
--- a/cloudmap/satellites.py
+++ /dev/null
@@ -1,393 +0,0 @@
-from __future__ import print_function
-from __future__ import unicode_literals
-from __future__ import absolute_import
-from __future__ import division
-
-from .mkdir import mkdir_p
-from .geo_dundee import GeoSatelliteDataDundee
-#  from .polar import PolarSatelliteData
-from .geo_jma import GeoSatelliteDataJMA
-
-import sys
-import datetime
-import numpy as np
-import os
-from PIL import Image
-import json
-import logging
-
-
-def curve(b):
-    """Rescale the brightness values used for MTSAT2 satellite"""
-
-    return np.minimum(b * 255.0 / 193.0, 255)
-
-
-def curve2(b):
-    """Rescale the brightness values used for MTSAT2 satellite"""
-
-    return np.minimum(b * 255.0 / 150.0, 255)
-
-
-def ID(b):
-    """Identity function"""
-
-    return b
-
-
-def invert(b):
-    """Identity function"""
-
-    return 255 - b
-
-
-def saveDebug(weight_sum, filename):
-    """
-    Save image for debugging onto map with grid and coastlines
-    """
-    if Satellites.projection_method == "pyresample":
-        saveDebug_pyresample(weight_sum, filename)
-    else:
-        saveDebug_cartopy(weight_sum, filename)
-
-
-def saveDebug_cartopy(weight_sum, filename):
-    """
-    Save image for debugging onto map with grid and coastlines using
-    cartopy
-    """
-    import matplotlib.pyplot as plt
-    import cartopy.crs as ccrs
-    import cartopy.feature as cfeature
-    import matplotlib.cm as cm
-
-    width = Satellites.outwidth
-    height = Satellites.outheight
-
-    fig = plt.figure(frameon=False, dpi=1, figsize=(width, height))
-    ax = plt.axes([0., 0., 1., 1.], projection=ccrs.PlateCarree())
-    fig.add_axes(ax)
-    ax.set_global()
-    ax.set_axis_off()
-
-    weight_sum = weight_sum / np.max(weight_sum) * 255.0
-
-    ax.imshow(weight_sum, origin='upper',
-              vmin=0, vmax=255,
-              extent=(-180, 180, -90, 90),
-              cmap=cm.Greys_r,  # @UndefinedVariable
-              )
-
-    ax.gridlines(draw_labels=False, axes=0, linewidth=10)
-#    ax.add_feature(cfeature.OCEAN, facecolor='aqua', alpha='0.1')
-    ax.add_feature(cfeature.BORDERS, alpha='0.2', linewidth="20")
-    ax.coastlines(resolution='50m', color='black', linewidth="20")
-
-    fig.canvas.draw()
-    plt.savefig(filename, bbox_inches='tight', pad_inches=0, dpi=1)
-
-
-def saveDebug_pyresample(weight_sum, filename):
-    """
-    Save image for debugging onto map with grid and coastlines using
-    pyresample
-    """
-
-    import matplotlib
-    matplotlib.use('AGG', warn=False)
-    from pyresample import plot
-    import matplotlib.pyplot as plt
-    import matplotlib.cm as cm
-
-    new_image = np.array(255.0 * weight_sum / np.max(weight_sum),
-                         'uint8')
-    bmap = plot.area_def2basemap(pc(Satellites.outwidth,
-                                    Satellites.outheight),
-                                 resolution='c')
-    bmap.drawcoastlines(linewidth=0.2, color='red')
-    bmap.drawmeridians(np.arange(-180, 180, 10), linewidth=0.2, color='red')
-    bmap.drawparallels(np.arange(-90, 90, 10), linewidth=0.2, color='red')
-    bmap.imshow(new_image, origin='upper', vmin=0, vmax=255,
-                cmap=cm.Greys_r)  # @UndefinedVariable
-#    plt.show()
-
-    i = datetime.datetime.utcnow()
-    plt.text(0, -75, "%s UTC" % i.isoformat(),
-             color='green', size=15,
-             horizontalalignment='center')
-    plt.savefig(filename, bbox_inches='tight', pad_inches=0, dpi=400)
-    plt.close()
-
-
-def saveImage(new_image, filename):
-    """Save satellite image"""
-
-    img = Image.fromarray(new_image).convert('RGB')
-    img.save(filename)
-
-
-def do_project(satellite):
-    """Wrap the project method to use multiprocessing pool"""
-    return satellite.project()
-
-
-def pc(x_size, y_size):
-    from pyresample import geometry
-    """Create area defintion for world map in Plate Carree projection"""
-    proj_dict = {'proj': 'eqc'}
-    area_extent = (-20037508.34, -10018754.17, 20037508.34, 10018754.17)
-    pc = geometry.AreaDefinition('pc', 'Plate Carree world map', 'pc',
-                                 proj_dict, x_size, y_size, area_extent)
-    return pc
-
-
-class Satellites(object):
-
-    """
-    Class to download and process all images from the Satellites server
-    """
-
-    # size of the output image
-    outwidth = 0
-    outheight = 0
-    projection_method = "pyresample"
-
-    def __init__(self, resolution, username, password, tempdir, nprocs=1,
-                 debug=False):
-        """
-        Args:
-            * resolution:
-                resolution of the image to be downloaded (low, medium, high)
-            * username:
-                username of Satellites account
-            * password:
-                password of Satellites account
-            * tempdir:
-                directory to store downloaded images (will be created
-                if necessary)
-            * nprocs:
-                number of processors to used for image processing
-        """
-
-        self.logger = logging.getLogger('create_map_logger')
-        self.username = username
-        self.password = password
-        self.tempdir = tempdir
-        self.nprocs = nprocs
-
-        jsonfile = os.path.expanduser("~/.CreateCloudMap/satellites.json")
-        satellite_json = json.load(open(jsonfile))
-        self.satellite_list = []
-
-        for s in satellite_json:
-            if s['rescale'] == "ID":
-                rescale = ID
-            elif s['rescale'] == "invert":
-                rescale = invert
-            else:
-                rescale = None
-
-            if 'resolution_str' in s:
-                resolution_str = s['resolution_str']
-            else:
-                resolution_str = {'low': 'S4',
-                                  'medium': 'S2',
-                                  'high': 'S1'}
-
-            if 'resolution_mult' in s:
-                resolution_mult = s['resolution_mult']
-            else:
-                resolution_mult = {'low': 1,
-                                   'medium': 2,
-                                   'high': 4}
-
-            if s['type'] == 'geoDundee':
-                self.satellite_list.append(GeoSatelliteDataDundee(
-                    longitude=s['longitude'],
-                    limit=s['limit'],
-                    base_url=s['base_url'],
-                    suffix=s['suffix'],
-                    resolution=resolution,
-                    resolution_str=resolution_str,
-                    resolution_mult=resolution_mult,
-                    debug=debug,
-                    rescale=rescale
-                ))
-            elif s['type'] == 'geoJMA':
-                self.satellite_list.append(GeoSatelliteDataJMA(
-                    longitude=s['longitude'],
-                    limit=s['limit'],
-                    base_url=s['base_url'],
-                    suffix=s['suffix'],
-                    resolution=resolution,
-                    debug=debug,
-                    rescale=rescale
-                ))
-
-    def find_latest(self, max_age):
-        """
-        Find the latest time for which all satellite images can
-        be downloaded
-        """
-        dt = datetime.datetime.utcnow()
-
-        self.logger.info("Search backward for images from: %s" % dt)
-
-        for _ in range(max_age):
-            found_all = True
-
-            for satellite in self.satellite_list:
-                satellite.login(self.username, self.password)
-                satellite.set_time(dt, self.tempdir)
-                found_all = found_all and satellite.check_for_image()
-
-            if found_all:
-                break
-            dt = dt - datetime.timedelta(hours=1)
-
-        if not found_all:
-            sys.exit("Cannot download (all) satellite images!")
-
-        return self.satellite_list[0].dt
-
-    def download(self, purge):
-        """
-        Download all satellite images
-
-        Args:
-            * purge:
-                Should all old satellite images be purged
-        """
-
-        mkdir_p(self.tempdir)
-
-        latest_download = 0
-        for satellite in self.satellite_list:
-            if purge:
-                satellite.purge()
-            self.logger.info("Satellite file: %s" % satellite.filename)
-            satellite.download_image()
-            latest_download = max(latest_download, satellite.filemodtime)
-
-        return latest_download
-
-    def overlay(self, debug):
-        """
-        Create overlay of all satellite images onto one world map
-
-        Args:
-            * debug:
-                Should images created during the image processing be saved
-        """
-
-        self.out_image = np.zeros(shape=(Satellites.outheight,
-                                         Satellites.outwidth))
-
-        weight_sum = np.zeros(shape=(Satellites.outheight,
-                                     Satellites.outwidth))
-
-        if self.nprocs == 1:
-            i = 1
-            images = []
-            for satellite in self.satellite_list:
-                # put class variables into object variables to get it to
-                # work with multiprocessing
-                satellite.outwidth = Satellites.outwidth
-                satellite.outheight = Satellites.outheight
-                satellite.projection_method = \
-                    Satellites.projection_method
-                img = satellite.project()
-                images.append(img)
-                if debug:
-                    self.imageDebug(i, img)
-                i += 1
-                weight_sum = weight_sum + img[1]
-                self.out_image = self.out_image + (img[0] * img[1])
-        else:
-            from multiprocessing import Pool
-            pool = Pool(processes=self.nprocs)
-
-            for satellite in self.satellite_list:
-                satellite.outwidth = Satellites.outwidth
-                satellite.outheight = Satellites.outheight
-                satellite.projection_method = \
-                    Satellites.projection_method
-
-            images = pool.map(do_project, self.satellite_list)
-            i = 1
-            for img in images:
-                if debug:
-                    self.imageDebug(i, img)
-                weight_sum = weight_sum + img[1]
-                self.out_image = self.out_image + (img[0] * img[1])
-                i += 1
-
-        self.out_image = self.out_image / weight_sum
-
-        if debug:
-            import itertools
-
-            qual_sum = 0
-            i = 0
-            for im1, im2 in itertools.combinations(images, 2):
-                qw = (im1[1] - im2[1])**0 * im1[1] * im2[1]
-                qal = (im1[0] - im2[0])**2 * qw
-                qual_sum += np.sum(qal)
-
-                qal[0, 0] = 1
-                saveDebug(qal,
-                          os.path.join(self.tempdir,
-                                       "qal" + str(i) + ".jpeg"))
-                saveDebug(qw,
-                          os.path.join(self.tempdir,
-                                       "qalwei" + str(i) + ".jpeg"))
-                i += 1
-
-            self.logger.info(
-                "Pixel deviation sum: %e" %
-                (qual_sum /
-                 (i * Satellites.outwidth * Satellites.outheight))
-            )
-
-            saveDebug(weight_sum,
-                      os.path.join(self.tempdir, "weightsum.jpeg"))
-            saveDebug(self.out_image,
-                      os.path.join(self.tempdir, "test.jpeg"))
-
-    def save_image(self, outdir, outfile):
-        """
-        Save the created world satellite image
-
-        Args:
-            * outdir:
-                Directory the image should be saved in
-            * outfile:
-                Filename of the image
-        """
-
-        mkdir_p(outdir)
-
-        try:
-            os.remove(os.path.join(outdir, outfile))
-        except OSError:
-            pass
-        saveImage(self.out_image, os.path.join(outdir, outfile))
-
-    def imageDebug(self, i, img):
-        """
-        Save intermediary image and corresponding local weighting values
-
-        Args:
-            * i:
-                sequential number of image
-            * img:
-                two dimensional array containing two images
-                (the real image and the weighting values)
-        """
-
-        saveDebug(img[0],
-                  os.path.join(self.tempdir, "test" +
-                               repr(i) + ".jpeg"))
-        saveDebug(img[1],
-                  os.path.join(self.tempdir, "weighttest" +
-                               repr(i) + ".jpeg"))
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..b0268cb
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,52 @@
+[build-system]
+requires = [
+  "setuptools>=61.0",
+  "versioneer[toml]",
+  'tomli; python_version < "3.11"',
+ ]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "CreateCloudMap"
+dynamic = ["version"]
+authors = [
+  { name="Joachim Herb", email="Joachim.Herb@gmx.de" },
+]
+description = "Downloads a cloud map for xplanet from https://clouds.matteason.co.uk/"
+readme = "README.rst"
+license = {file = "LICENSE"}
+requires-python = ">=3.8"
+dependencies = [
+  'requests',
+  'python-dateutil'
+]
+classifiers = [
+        "Programming Language :: Python",
+        "Programming Language :: Python :: 3",
+        "License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
+        "Operating System :: OS Independent",
+        "Development Status :: 4 - Beta",
+        "Environment :: Console",
+        "Intended Audience :: End Users/Desktop",
+        "Topic :: Desktop Environment",
+        "Topic :: Multimedia :: Graphics",
+        "Topic :: Scientific/Engineering :: Atmospheric Science",
+        "Topic :: Scientific/Engineering :: GIS",
+        "Topic :: Scientific/Engineering :: Visualization",
+        "Topic :: Utilities",
+]
+
+[project.scripts]
+create_map = "cloudmap.create_map:main"
+
+[project.urls]
+Homepage = "https://github.com/jmozmoz/cloudmap"
+Issues = "https://github.com/jmozmoz/cloudmap/issues"
+
+[tool.versioneer]
+VCS = "git"
+style = "pep440"
+versionfile_source = "cloudmap/_version.py"
+versionfile_build = "cloudmap/_version.py"
+tag_prefix = ""
+parentdir_prefix = "CreateCloudMap-"
\ No newline at end of file
diff --git a/setup.py b/setup.py
index 43fd721..638788c 100644
--- a/setup.py
+++ b/setup.py
@@ -7,25 +7,8 @@
 from setuptools.command.install import install as _install
 import os
 import versioneer
-import sys
 import datetime
-
-versioneer.VCS = 'git'
-versioneer.versionfile_source = 'cloudmap/_version.py'
-versioneer.versionfile_build = 'cloudmap/_version.py'
-versioneer.tag_prefix = ''  # tags are like 1.2.0
-versioneer.parentdir_prefix = 'CreateCloudMap-'
-
-
-def mkdir_p(path):
-    import errno
-    try:
-        os.makedirs(path)
-    except OSError as exc:  # Python >2.5
-        if exc.errno == errno.EEXIST and os.path.isdir(path):
-            pass
-        else:
-            raise
+from pathlib import Path
 
 
 def copy_config():
@@ -34,11 +17,10 @@ def copy_config():
         'CreateCloudMap.ini',
     ]
     srcfiles_overwrite = [
-        'satellites.json'
     ]
 
     dstdir = os.path.expanduser('~/.CreateCloudMap')
-    mkdir_p(dstdir)
+    Path(dstdir).mkdir(parents=True, exist_ok=True)
 
     for src in srcfiles:
         dstfile = os.path.join(dstdir, src)
@@ -70,59 +52,8 @@ def run(self):
 cmdclass = versioneer.get_cmdclass()
 cmdclass['install'] = Install
 
-if sys.version_info >= (3, 2):
-    install_requires = ['pyresample', 'numpy', 'scipy', 'requests',
-                        'pillow>=3.0.0', 'setuptools>=0.7.2',
-                        ]
-else:
-    install_requires = ['pyresample', 'numpy', 'scipy', 'requests',
-                        'pillow>=3.0.0', 'setuptools>=0.7.2',
-                        'configparser>=3.5.0b1',
-                        ]
-
 setup(
-    name='CreateCloudMap',
     version=versioneer.get_version(),
     packages=['cloudmap', ],
     cmdclass=cmdclass,
-    license='GPL3',
-    description='Create a cloud map for xplanet using satellite images ' +
-                'from the Dundee Satellite Receiving Station',
-    long_description=open('README.rst').read(),
-    author='Joachim Herb',
-    author_email='Joachim.Herb@gmx.de',
-    url='https://github.com/jmozmoz/cloudmap',
-    install_requires=install_requires,
-    extras_require={
-        'cartopy':  ["cartopy", "shapely", "pyshp"],
-        'debug_pyresample': ["basemap", "matplotlib"],
-        'debug_cartopy': ["cartopy", "shapely", "pyshp", "matplotlib"]
-    },
-    entry_points={
-        'console_scripts': [
-            'create_map = cloudmap.create_map:main',
-        ]
-    },
-    classifiers=[
-        "Programming Language :: Python",
-        "Programming Language :: Python :: 2",
-        "Programming Language :: Python :: 2.7",
-        "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.4",
-        "Programming Language :: Python :: 3.5",
-        "Programming Language :: Python :: 3.6",
-        "Programming Language :: Python :: 3.7",
-        "License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
-        "Operating System :: OS Independent",
-        "Development Status :: 4 - Beta",
-        "Environment :: Console",
-        "Intended Audience :: End Users/Desktop",
-        "Topic :: Desktop Environment",
-        "Topic :: Multimedia :: Graphics",
-        "Topic :: Scientific/Engineering :: Atmospheric Science",
-        "Topic :: Scientific/Engineering :: GIS",
-        "Topic :: Scientific/Engineering :: Visualization",
-        "Topic :: Utilities",
-    ],
-    zip_safe=False,
 )
diff --git a/versioneer.py b/versioneer.py
index 03193e8..1e3753e 100644
--- a/versioneer.py
+++ b/versioneer.py
@@ -1,19 +1,20 @@
 
-# Version: 0.11
+# Version: 0.29
+
+"""The Versioneer - like a rocketeer, but for versions.
 
-"""
 The Versioneer
 ==============
 
 * like a rocketeer, but for versions!
-* https://github.com/warner/python-versioneer
+* https://github.com/python-versioneer/python-versioneer
 * Brian Warner
-* License: Public Domain
-* Compatible With: python2.6, 2.7, 3.2, 3.3, 3.4, and pypy
+* License: Public Domain (Unlicense)
+* Compatible with: Python 3.7, 3.8, 3.9, 3.10, 3.11 and pypy3
+* [![Latest Version][pypi-image]][pypi-url]
+* [![Build Status][travis-image]][travis-url]
 
-[![Build Status](https://travis-ci.org/warner/python-versioneer.png?branch=master)](https://travis-ci.org/warner/python-versioneer)
-
-This is a tool for managing a recorded version number in distutils-based
+This is a tool for managing a recorded version number in setuptools-based
 python projects. The goal is to remove the tedious and error-prone "update
 the embedded version string" step from your release process. Making a new
 release should be as easy as recording a new tag in your version-control
@@ -22,9 +23,38 @@
 
 ## Quick Install
 
-* `pip install versioneer` to somewhere to your $PATH
-* run `versioneer-installer` in your source tree: this installs `versioneer.py`
-* follow the instructions below (also in the `versioneer.py` docstring)
+Versioneer provides two installation modes. The "classic" vendored mode installs
+a copy of versioneer into your repository. The experimental build-time dependency mode
+is intended to allow you to skip this step and simplify the process of upgrading.
+
+### Vendored mode
+
+* `pip install versioneer` to somewhere in your $PATH
+   * A [conda-forge recipe](https://github.com/conda-forge/versioneer-feedstock) is
+     available, so you can also use `conda install -c conda-forge versioneer`
+* add a `[tool.versioneer]` section to your `pyproject.toml` or a
+  `[versioneer]` section to your `setup.cfg` (see [Install](INSTALL.md))
+   * Note that you will need to add `tomli; python_version < "3.11"` to your
+     build-time dependencies if you use `pyproject.toml`
+* run `versioneer install --vendor` in your source tree, commit the results
+* verify version information with `python setup.py version`
+
+### Build-time dependency mode
+
+* `pip install versioneer` to somewhere in your $PATH
+   * A [conda-forge recipe](https://github.com/conda-forge/versioneer-feedstock) is
+     available, so you can also use `conda install -c conda-forge versioneer`
+* add a `[tool.versioneer]` section to your `pyproject.toml` or a
+  `[versioneer]` section to your `setup.cfg` (see [Install](INSTALL.md))
+* add `versioneer` (with `[toml]` extra, if configuring in `pyproject.toml`)
+  to the `requires` key of the `build-system` table in `pyproject.toml`:
+  ```toml
+  [build-system]
+  requires = ["setuptools", "versioneer[toml]"]
+  build-backend = "setuptools.build_meta"
+  ```
+* run `versioneer install --no-vendor` in your source tree, commit the results
+* verify version information with `python setup.py version`
 
 ## Version Identifiers
 
@@ -53,10 +83,10 @@
 enough information to help developers recreate the same tree, while also
 giving them an idea of roughly how old the tree is (after version 1.2, before
 version 1.3). Many VCS systems can report a description that captures this,
-for example 'git describe --tags --dirty --always' reports things like
+for example `git describe --tags --dirty --always` reports things like
 "0.7-1-g574ab98-dirty" to indicate that the checkout is one revision past the
 0.7 tag, has a unique revision id of "574ab98", and is "dirty" (it has
-uncommitted changes.
+uncommitted changes).
 
 The version identifier is used for multiple purposes:
 
@@ -67,170 +97,175 @@
 
 Versioneer works by adding a special `_version.py` file into your source
 tree, where your `__init__.py` can import it. This `_version.py` knows how to
-dynamically ask the VCS tool for version information at import time. However,
-when you use "setup.py build" or "setup.py sdist", `_version.py` in the new
-copy is replaced by a small static file that contains just the generated
-version data.
+dynamically ask the VCS tool for version information at import time.
 
 `_version.py` also contains `$Revision$` markers, and the installation
 process marks `_version.py` to have this marker rewritten with a tag name
-during the "git archive" command. As a result, generated tarballs will
+during the `git archive` command. As a result, generated tarballs will
 contain enough information to get the proper version.
 
+To allow `setup.py` to compute a version too, a `versioneer.py` is added to
+the top level of your source tree, next to `setup.py` and the `setup.cfg`
+that configures it. This overrides several distutils/setuptools commands to
+compute the version when invoked, and changes `setup.py build` and `setup.py
+sdist` to replace `_version.py` with a small static file that contains just
+the generated version data.
 
 ## Installation
 
-First, decide on values for the following configuration variables:
+See [INSTALL.md](./INSTALL.md) for detailed installation instructions.
 
-* `VCS`: the version control system you use. Currently accepts "git".
+## Version-String Flavors
 
-* `versionfile_source`:
+Code which uses Versioneer can learn about its version string at runtime by
+importing `_version` from your main `__init__.py` file and running the
+`get_versions()` function. From the "outside" (e.g. in `setup.py`), you can
+import the top-level `versioneer.py` and run `get_versions()`.
 
-  A project-relative pathname into which the generated version strings should
-  be written. This is usually a `_version.py` next to your project's main
-  `__init__.py` file. If your project uses `src/myproject/__init__.py`, this
-  should be `src/myproject/_version.py`. This file should be checked in to
-  your VCS as usual: the copy created below by `setup.py versioneer` will
-  include code that parses expanded VCS keywords in generated tarballs. The
-  'build' and 'sdist' commands will replace it with a copy that has just the
-  calculated version string.
+Both functions return a dictionary with different flavors of version
+information:
 
-*  `versionfile_build`:
+* `['version']`: A condensed version string, rendered using the selected
+  style. This is the most commonly used value for the project's version
+  string. The default "pep440" style yields strings like `0.11`,
+  `0.11+2.g1076c97`, or `0.11+2.g1076c97.dirty`. See the "Styles" section
+  below for alternative styles.
 
-  Like `versionfile_source`, but relative to the build directory instead of
-  the source directory. These will differ when your setup.py uses
-  'package_dir='. If you have `package_dir={'myproject': 'src/myproject'}`,
-  then you will probably have `versionfile_build='myproject/_version.py'` and
-  `versionfile_source='src/myproject/_version.py'`.
+* `['full-revisionid']`: detailed revision identifier. For Git, this is the
+  full SHA1 commit id, e.g. "1076c978a8d3cfc70f408fe5974aa6c092c949ac".
 
-* `tag_prefix`:
+* `['date']`: Date and time of the latest `HEAD` commit. For Git, it is the
+  commit date in ISO 8601 format. This will be None if the date is not
+  available.
 
-  a string, like 'PROJECTNAME-', which appears at the start of all VCS tags.
-  If your tags look like 'myproject-1.2.0', then you should use
-  tag_prefix='myproject-'. If you use unprefixed tags like '1.2.0', this
-  should be an empty string.
+* `['dirty']`: a boolean, True if the tree has uncommitted changes. Note that
+  this is only accurate if run in a VCS checkout, otherwise it is likely to
+  be False or None
 
-* `parentdir_prefix`:
+* `['error']`: if the version string could not be computed, this will be set
+  to a string describing the problem, otherwise it will be None. It may be
+  useful to throw an exception in setup.py if this is set, to avoid e.g.
+  creating tarballs with a version string of "unknown".
 
-  a string, frequently the same as tag_prefix, which appears at the start of
-  all unpacked tarball filenames. If your tarball unpacks into
-  'myproject-1.2.0', this should be 'myproject-'.
+Some variants are more useful than others. Including `full-revisionid` in a
+bug report should allow developers to reconstruct the exact code being tested
+(or indicate the presence of local changes that should be shared with the
+developers). `version` is suitable for display in an "about" box or a CLI
+`--version` output: it can be easily compared against release notes and lists
+of bugs fixed in various releases.
 
-This tool provides one script, named `versioneer-installer`. That script does
-one thing: write a copy of `versioneer.py` into the current directory.
+The installer adds the following text to your `__init__.py` to place a basic
+version in `YOURPROJECT.__version__`:
 
-To versioneer-enable your project:
+    from ._version import get_versions
+    __version__ = get_versions()['version']
+    del get_versions
 
-* 1: Run `versioneer-installer` to copy `versioneer.py` into the top of your
-  source tree.
+## Styles
 
-* 2: add the following lines to the top of your `setup.py`, with the
-  configuration values you decided earlier:
+The setup.cfg `style=` configuration controls how the VCS information is
+rendered into a version string.
 
-        import versioneer
-        versioneer.VCS = 'git'
-        versioneer.versionfile_source = 'src/myproject/_version.py'
-        versioneer.versionfile_build = 'myproject/_version.py'
-        versioneer.tag_prefix = '' # tags are like 1.2.0
-        versioneer.parentdir_prefix = 'myproject-' # dirname like 'myproject-1.2.0'
+The default style, "pep440", produces a PEP440-compliant string, equal to the
+un-prefixed tag name for actual releases, and containing an additional "local
+version" section with more detail for in-between builds. For Git, this is
+TAG[+DISTANCE.gHEX[.dirty]] , using information from `git describe --tags
+--dirty --always`. For example "0.11+2.g1076c97.dirty" indicates that the
+tree is like the "1076c97" commit but has uncommitted changes (".dirty"), and
+that this commit is two revisions ("+2") beyond the "0.11" tag. For released
+software (exactly equal to a known tag), the identifier will only contain the
+stripped tag, e.g. "0.11".
 
-* 3: add the following arguments to the setup() call in your setup.py:
+Other styles are available. See [details.md](details.md) in the Versioneer
+source tree for descriptions.
 
-        version=versioneer.get_version(),
-        cmdclass=versioneer.get_cmdclass(),
+## Debugging
 
-* 4: now run `setup.py versioneer`, which will create `_version.py`, and
-  will modify your `__init__.py` to define `__version__` (by calling a
-  function from `_version.py`). It will also modify your `MANIFEST.in` to
-  include both `versioneer.py` and the generated `_version.py` in sdist
-  tarballs.
+Versioneer tries to avoid fatal errors: if something goes wrong, it will tend
+to return a version of "0+unknown". To investigate the problem, run `setup.py
+version`, which will run the version-lookup code in a verbose mode, and will
+display the full contents of `get_versions()` (including the `error` string,
+which may help identify what went wrong).
 
-* 5: commit these changes to your VCS. To make sure you won't forget,
-  `setup.py versioneer` will mark everything it touched for addition.
+## Known Limitations
 
-## Post-Installation Usage
+Some situations are known to cause problems for Versioneer. This details the
+most significant ones. More can be found on Github
+[issues page](https://github.com/python-versioneer/python-versioneer/issues).
 
-Once established, all uses of your tree from a VCS checkout should get the
-current version string. All generated tarballs should include an embedded
-version string (so users who unpack them will not need a VCS tool installed).
+### Subprojects
 
-If you distribute your project through PyPI, then the release process should
-boil down to two steps:
+Versioneer has limited support for source trees in which `setup.py` is not in
+the root directory (e.g. `setup.py` and `.git/` are *not* siblings). The are
+two common reasons why `setup.py` might not be in the root:
 
-* 1: git tag 1.0
-* 2: python setup.py register sdist upload
+* Source trees which contain multiple subprojects, such as
+  [Buildbot](https://github.com/buildbot/buildbot), which contains both
+  "master" and "slave" subprojects, each with their own `setup.py`,
+  `setup.cfg`, and `tox.ini`. Projects like these produce multiple PyPI
+  distributions (and upload multiple independently-installable tarballs).
+* Source trees whose main purpose is to contain a C library, but which also
+  provide bindings to Python (and perhaps other languages) in subdirectories.
 
-If you distribute it through github (i.e. users use github to generate
-tarballs with `git archive`), the process is:
+Versioneer will look for `.git` in parent directories, and most operations
+should get the right version string. However `pip` and `setuptools` have bugs
+and implementation details which frequently cause `pip install .` from a
+subproject directory to fail to find a correct version string (so it usually
+defaults to `0+unknown`).
 
-* 1: git tag 1.0
-* 2: git push; git push --tags
+`pip install --editable .` should work correctly. `setup.py install` might
+work too.
 
-Currently, all version strings must be based upon a tag. Versioneer will
-report "unknown" until your tree has at least one tag in its history. This
-restriction will be fixed eventually (see issue #12).
+Pip-8.1.1 is known to have this problem, but hopefully it will get fixed in
+some later version.
 
-## Version-String Flavors
+[Bug #38](https://github.com/python-versioneer/python-versioneer/issues/38) is tracking
+this issue. The discussion in
+[PR #61](https://github.com/python-versioneer/python-versioneer/pull/61) describes the
+issue from the Versioneer side in more detail.
+[pip PR#3176](https://github.com/pypa/pip/pull/3176) and
+[pip PR#3615](https://github.com/pypa/pip/pull/3615) contain work to improve
+pip to let Versioneer work correctly.
 
-Code which uses Versioneer can learn about its version string at runtime by
-importing `_version` from your main `__init__.py` file and running the
-`get_versions()` function. From the "outside" (e.g. in `setup.py`), you can
-import the top-level `versioneer.py` and run `get_versions()`.
-
-Both functions return a dictionary with different keys for different flavors
-of the version string:
+Versioneer-0.16 and earlier only looked for a `.git` directory next to the
+`setup.cfg`, so subprojects were completely unsupported with those releases.
 
-* `['version']`: condensed tag+distance+shortid+dirty identifier. For git,
-  this uses the output of `git describe --tags --dirty --always` but strips
-  the tag_prefix. For example "0.11-2-g1076c97-dirty" indicates that the tree
-  is like the "1076c97" commit but has uncommitted changes ("-dirty"), and
-  that this commit is two revisions ("-2-") beyond the "0.11" tag. For
-  released software (exactly equal to a known tag), the identifier will only
-  contain the stripped tag, e.g. "0.11".
+### Editable installs with setuptools <= 18.5
 
-* `['full']`: detailed revision identifier. For Git, this is the full SHA1
-  commit id, followed by "-dirty" if the tree contains uncommitted changes,
-  e.g. "1076c978a8d3cfc70f408fe5974aa6c092c949ac-dirty".
+`setup.py develop` and `pip install --editable .` allow you to install a
+project into a virtualenv once, then continue editing the source code (and
+test) without re-installing after every change.
 
-Some variants are more useful than others. Including `full` in a bug report
-should allow developers to reconstruct the exact code being tested (or
-indicate the presence of local changes that should be shared with the
-developers). `version` is suitable for display in an "about" box or a CLI
-`--version` output: it can be easily compared against release notes and lists
-of bugs fixed in various releases.
+"Entry-point scripts" (`setup(entry_points={"console_scripts": ..})`) are a
+convenient way to specify executable scripts that should be installed along
+with the python package.
 
-In the future, this will also include a
-[PEP-0440](http://legacy.python.org/dev/peps/pep-0440/) -compatible flavor
-(e.g. `1.2.post0.dev123`). This loses a lot of information (and has no room
-for a hash-based revision id), but is safe to use in a `setup.py`
-"`version=`" argument. It also enables tools like *pip* to compare version
-strings and evaluate compatibility constraint declarations.
+These both work as expected when using modern setuptools. When using
+setuptools-18.5 or earlier, however, certain operations will cause
+`pkg_resources.DistributionNotFound` errors when running the entrypoint
+script, which must be resolved by re-installing the package. This happens
+when the install happens with one version, then the egg_info data is
+regenerated while a different version is checked out. Many setup.py commands
+cause egg_info to be rebuilt (including `sdist`, `wheel`, and installing into
+a different virtualenv), so this can be surprising.
 
-The `setup.py versioneer` command adds the following text to your
-`__init__.py` to place a basic version in `YOURPROJECT.__version__`:
+[Bug #83](https://github.com/python-versioneer/python-versioneer/issues/83) describes
+this one, but upgrading to a newer version of setuptools should probably
+resolve it.
 
-    from ._version import get_versions
-    __version = get_versions()['version']
-    del get_versions
 
 ## Updating Versioneer
 
 To upgrade your project to a new release of Versioneer, do the following:
 
 * install the new Versioneer (`pip install -U versioneer` or equivalent)
-* re-run `versioneer-installer` in your source tree to replace your copy of
-  `versioneer.py`
-* edit `setup.py`, if necessary, to include any new configuration settings
-  indicated by the release notes
-* re-run `setup.py versioneer` to replace `SRC/_version.py`
+* edit `setup.cfg` and `pyproject.toml`, if necessary,
+  to include any new configuration settings indicated by the release notes.
+  See [UPGRADING](./UPGRADING.md) for details.
+* re-run `versioneer install --[no-]vendor` in your source tree, to replace
+  `SRC/_version.py`
 * commit any changed files
 
-### Upgrading from 0.10 to 0.11
-
-You must add a `versioneer.VCS = "git"` to your `setup.py` before re-running
-`setup.py versioneer`. This will enable the use of additional version-control
-systems (SVN, etc) in the future.
-
 ## Future Directions
 
 This tool is designed to make it easily extended to other version-control
@@ -244,161 +279,447 @@
 direction and include code from all supported VCS systems, reducing the
 number of intermediate scripts.
 
+## Similar projects
+
+* [setuptools_scm](https://github.com/pypa/setuptools_scm/) - a non-vendored build-time
+  dependency
+* [minver](https://github.com/jbweston/miniver) - a lightweight reimplementation of
+  versioneer
+* [versioningit](https://github.com/jwodder/versioningit) - a PEP 518-based setuptools
+  plugin
 
 ## License
 
-To make Versioneer easier to embed, all its code is hereby released into the
-public domain. The `_version.py` that it creates is also in the public
-domain.
+To make Versioneer easier to embed, all its code is dedicated to the public
+domain. The `_version.py` that it creates is also in the public domain.
+Specifically, both are released under the "Unlicense", as described in
+https://unlicense.org/.
+
+[pypi-image]: https://img.shields.io/pypi/v/versioneer.svg
+[pypi-url]: https://pypi.python.org/pypi/versioneer/
+[travis-image]:
+https://img.shields.io/travis/com/python-versioneer/python-versioneer.svg
+[travis-url]: https://travis-ci.com/github/python-versioneer/python-versioneer
 
 """
+# pylint:disable=invalid-name,import-outside-toplevel,missing-function-docstring
+# pylint:disable=missing-class-docstring,too-many-branches,too-many-statements
+# pylint:disable=raise-missing-from,too-many-lines,too-many-locals,import-error
+# pylint:disable=too-few-public-methods,redefined-outer-name,consider-using-with
+# pylint:disable=attribute-defined-outside-init,too-many-arguments
+
+import configparser
+import errno
+import json
+import os
+import re
+import subprocess
+import sys
+from pathlib import Path
+from typing import Any, Callable, cast, Dict, List, Optional, Tuple, Union
+from typing import NoReturn
+import functools
+
+have_tomllib = True
+if sys.version_info >= (3, 11):
+    import tomllib
+else:
+    try:
+        import tomli as tomllib
+    except ImportError:
+        have_tomllib = False
+
+
+class VersioneerConfig:
+    """Container for Versioneer configuration parameters."""
+
+    VCS: str
+    style: str
+    tag_prefix: str
+    versionfile_source: str
+    versionfile_build: Optional[str]
+    parentdir_prefix: Optional[str]
+    verbose: Optional[bool]
+
+
+def get_root() -> str:
+    """Get the project root directory.
+
+    We require that all commands are run from the project root, i.e. the
+    directory that contains setup.py, setup.cfg, and versioneer.py .
+    """
+    root = os.path.realpath(os.path.abspath(os.getcwd()))
+    setup_py = os.path.join(root, "setup.py")
+    pyproject_toml = os.path.join(root, "pyproject.toml")
+    versioneer_py = os.path.join(root, "versioneer.py")
+    if not (
+        os.path.exists(setup_py)
+        or os.path.exists(pyproject_toml)
+        or os.path.exists(versioneer_py)
+    ):
+        # allow 'python path/to/setup.py COMMAND'
+        root = os.path.dirname(os.path.realpath(os.path.abspath(sys.argv[0])))
+        setup_py = os.path.join(root, "setup.py")
+        pyproject_toml = os.path.join(root, "pyproject.toml")
+        versioneer_py = os.path.join(root, "versioneer.py")
+    if not (
+        os.path.exists(setup_py)
+        or os.path.exists(pyproject_toml)
+        or os.path.exists(versioneer_py)
+    ):
+        err = ("Versioneer was unable to run the project root directory. "
+               "Versioneer requires setup.py to be executed from "
+               "its immediate directory (like 'python setup.py COMMAND'), "
+               "or in a way that lets it use sys.argv[0] to find the root "
+               "(like 'python path/to/setup.py COMMAND').")
+        raise VersioneerBadRootError(err)
+    try:
+        # Certain runtime workflows (setup.py install/develop in a setuptools
+        # tree) execute all dependencies in a single python process, so
+        # "versioneer" may be imported multiple times, and python's shared
+        # module-import table will cache the first one. So we can't use
+        # os.path.dirname(__file__), as that will find whichever
+        # versioneer.py was first imported, even in later projects.
+        my_path = os.path.realpath(os.path.abspath(__file__))
+        me_dir = os.path.normcase(os.path.splitext(my_path)[0])
+        vsr_dir = os.path.normcase(os.path.splitext(versioneer_py)[0])
+        if me_dir != vsr_dir and "VERSIONEER_PEP518" not in globals():
+            print("Warning: build in %s is using versioneer.py from %s"
+                  % (os.path.dirname(my_path), versioneer_py))
+    except NameError:
+        pass
+    return root
+
+
+def get_config_from_root(root: str) -> VersioneerConfig:
+    """Read the project setup.cfg file to determine Versioneer config."""
+    # This might raise OSError (if setup.cfg is missing), or
+    # configparser.NoSectionError (if it lacks a [versioneer] section), or
+    # configparser.NoOptionError (if it lacks "VCS="). See the docstring at
+    # the top of versioneer.py for instructions on writing your setup.cfg .
+    root_pth = Path(root)
+    pyproject_toml = root_pth / "pyproject.toml"
+    setup_cfg = root_pth / "setup.cfg"
+    section: Union[Dict[str, Any], configparser.SectionProxy, None] = None
+    if pyproject_toml.exists() and have_tomllib:
+        try:
+            with open(pyproject_toml, 'rb') as fobj:
+                pp = tomllib.load(fobj)
+            section = pp['tool']['versioneer']
+        except (tomllib.TOMLDecodeError, KeyError) as e:
+            print(f"Failed to load config from {pyproject_toml}: {e}")
+            print("Try to load it from setup.cfg")
+    if not section:
+        parser = configparser.ConfigParser()
+        with open(setup_cfg) as cfg_file:
+            parser.read_file(cfg_file)
+        parser.get("versioneer", "VCS")  # raise error if missing
+
+        section = parser["versioneer"]
+
+    # `cast`` really shouldn't be used, but its simplest for the
+    # common VersioneerConfig users at the moment. We verify against
+    # `None` values elsewhere where it matters
+
+    cfg = VersioneerConfig()
+    cfg.VCS = section['VCS']
+    cfg.style = section.get("style", "")
+    cfg.versionfile_source = cast(str, section.get("versionfile_source"))
+    cfg.versionfile_build = section.get("versionfile_build")
+    cfg.tag_prefix = cast(str, section.get("tag_prefix"))
+    if cfg.tag_prefix in ("''", '""', None):
+        cfg.tag_prefix = ""
+    cfg.parentdir_prefix = section.get("parentdir_prefix")
+    if isinstance(section, configparser.SectionProxy):
+        # Make sure configparser translates to bool
+        cfg.verbose = section.getboolean("verbose")
+    else:
+        cfg.verbose = section.get("verbose")
 
-import os, sys, re, subprocess, errno
-from distutils.core import Command
-from distutils.command.sdist import sdist as _sdist
-from distutils.command.build import build as _build
+    return cfg
 
-# these configuration settings will be overridden by setup.py after it
-# imports us
-versionfile_source = None
-versionfile_build = None
-tag_prefix = None
-parentdir_prefix = None
-VCS = None
 
-# these dictionaries contain VCS-specific tools
-LONG_VERSION_PY = {}
+class NotThisMethod(Exception):
+    """Exception raised if a method is not valid for the current scenario."""
+
 
-def run_command(commands, args, cwd=None, verbose=False, hide_stderr=False):
+# these dictionaries contain VCS-specific tools
+LONG_VERSION_PY: Dict[str, str] = {}
+HANDLERS: Dict[str, Dict[str, Callable]] = {}
+
+
+def register_vcs_handler(vcs: str, method: str) -> Callable:  # decorator
+    """Create decorator to mark a method as the handler of a VCS."""
+    def decorate(f: Callable) -> Callable:
+        """Store f in HANDLERS[vcs][method]."""
+        HANDLERS.setdefault(vcs, {})[method] = f
+        return f
+    return decorate
+
+
+def run_command(
+    commands: List[str],
+    args: List[str],
+    cwd: Optional[str] = None,
+    verbose: bool = False,
+    hide_stderr: bool = False,
+    env: Optional[Dict[str, str]] = None,
+) -> Tuple[Optional[str], Optional[int]]:
+    """Call the given command(s)."""
     assert isinstance(commands, list)
-    p = None
-    for c in commands:
+    process = None
+
+    popen_kwargs: Dict[str, Any] = {}
+    if sys.platform == "win32":
+        # This hides the console window if pythonw.exe is used
+        startupinfo = subprocess.STARTUPINFO()
+        startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
+        popen_kwargs["startupinfo"] = startupinfo
+
+    for command in commands:
         try:
+            dispcmd = str([command] + args)
             # remember shell=False, so use git.cmd on windows, not just git
-            p = subprocess.Popen([c] + args, cwd=cwd, stdout=subprocess.PIPE,
-                                 stderr=(subprocess.PIPE if hide_stderr
-                                         else None))
+            process = subprocess.Popen([command] + args, cwd=cwd, env=env,
+                                       stdout=subprocess.PIPE,
+                                       stderr=(subprocess.PIPE if hide_stderr
+                                               else None), **popen_kwargs)
             break
-        except EnvironmentError:
-            e = sys.exc_info()[1]
+        except OSError as e:
             if e.errno == errno.ENOENT:
                 continue
             if verbose:
-                print("unable to run %s" % args[0])
+                print("unable to run %s" % dispcmd)
                 print(e)
-            return None
+            return None, None
     else:
         if verbose:
             print("unable to find command, tried %s" % (commands,))
-        return None
-    stdout = p.communicate()[0].strip()
-    if sys.version >= '3':
-        stdout = stdout.decode()
-    if p.returncode != 0:
+        return None, None
+    stdout = process.communicate()[0].strip().decode()
+    if process.returncode != 0:
         if verbose:
-            print("unable to run %s (error)" % args[0])
-        return None
-    return stdout
+            print("unable to run %s (error)" % dispcmd)
+            print("stdout was %s" % stdout)
+        return None, process.returncode
+    return stdout, process.returncode
 
-LONG_VERSION_PY['git'] = '''
+
+LONG_VERSION_PY['git'] = r'''
 # This file helps to compute a version number in source trees obtained from
 # git-archive tarball (such as those provided by githubs download-from-tag
 # feature). Distribution tarballs (built by setup.py sdist) and build
 # directories (produced by setup.py build) will contain a much shorter file
 # that just contains the computed version number.
 
-# This file is released into the public domain. Generated by
-# versioneer-0.11 (https://github.com/warner/python-versioneer)
+# This file is released into the public domain.
+# Generated by versioneer-0.29
+# https://github.com/python-versioneer/python-versioneer
+
+"""Git implementation of _version.py."""
+
+import errno
+import os
+import re
+import subprocess
+import sys
+from typing import Any, Callable, Dict, List, Optional, Tuple
+import functools
+
+
+def get_keywords() -> Dict[str, str]:
+    """Get the keywords needed to look up the version information."""
+    # these strings will be replaced by git during git-archive.
+    # setup.py/versioneer.py will grep for the variable names, so they must
+    # each be defined on a line of their own. _version.py will just call
+    # get_keywords().
+    git_refnames = "%(DOLLAR)sFormat:%%d%(DOLLAR)s"
+    git_full = "%(DOLLAR)sFormat:%%H%(DOLLAR)s"
+    git_date = "%(DOLLAR)sFormat:%%ci%(DOLLAR)s"
+    keywords = {"refnames": git_refnames, "full": git_full, "date": git_date}
+    return keywords
+
 
-# these strings will be replaced by git during git-archive
-git_refnames = "%(DOLLAR)sFormat:%%d%(DOLLAR)s"
-git_full = "%(DOLLAR)sFormat:%%H%(DOLLAR)s"
+class VersioneerConfig:
+    """Container for Versioneer configuration parameters."""
 
-# these strings are filled in when 'setup.py versioneer' creates _version.py
-tag_prefix = "%(TAG_PREFIX)s"
-parentdir_prefix = "%(PARENTDIR_PREFIX)s"
-versionfile_source = "%(VERSIONFILE_SOURCE)s"
+    VCS: str
+    style: str
+    tag_prefix: str
+    parentdir_prefix: str
+    versionfile_source: str
+    verbose: bool
 
-import os, sys, re, subprocess, errno
 
-def run_command(commands, args, cwd=None, verbose=False, hide_stderr=False):
+def get_config() -> VersioneerConfig:
+    """Create, populate and return the VersioneerConfig() object."""
+    # these strings are filled in when 'setup.py versioneer' creates
+    # _version.py
+    cfg = VersioneerConfig()
+    cfg.VCS = "git"
+    cfg.style = "%(STYLE)s"
+    cfg.tag_prefix = "%(TAG_PREFIX)s"
+    cfg.parentdir_prefix = "%(PARENTDIR_PREFIX)s"
+    cfg.versionfile_source = "%(VERSIONFILE_SOURCE)s"
+    cfg.verbose = False
+    return cfg
+
+
+class NotThisMethod(Exception):
+    """Exception raised if a method is not valid for the current scenario."""
+
+
+LONG_VERSION_PY: Dict[str, str] = {}
+HANDLERS: Dict[str, Dict[str, Callable]] = {}
+
+
+def register_vcs_handler(vcs: str, method: str) -> Callable:  # decorator
+    """Create decorator to mark a method as the handler of a VCS."""
+    def decorate(f: Callable) -> Callable:
+        """Store f in HANDLERS[vcs][method]."""
+        if vcs not in HANDLERS:
+            HANDLERS[vcs] = {}
+        HANDLERS[vcs][method] = f
+        return f
+    return decorate
+
+
+def run_command(
+    commands: List[str],
+    args: List[str],
+    cwd: Optional[str] = None,
+    verbose: bool = False,
+    hide_stderr: bool = False,
+    env: Optional[Dict[str, str]] = None,
+) -> Tuple[Optional[str], Optional[int]]:
+    """Call the given command(s)."""
     assert isinstance(commands, list)
-    p = None
-    for c in commands:
+    process = None
+
+    popen_kwargs: Dict[str, Any] = {}
+    if sys.platform == "win32":
+        # This hides the console window if pythonw.exe is used
+        startupinfo = subprocess.STARTUPINFO()
+        startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
+        popen_kwargs["startupinfo"] = startupinfo
+
+    for command in commands:
         try:
+            dispcmd = str([command] + args)
             # remember shell=False, so use git.cmd on windows, not just git
-            p = subprocess.Popen([c] + args, cwd=cwd, stdout=subprocess.PIPE,
-                                 stderr=(subprocess.PIPE if hide_stderr
-                                         else None))
+            process = subprocess.Popen([command] + args, cwd=cwd, env=env,
+                                       stdout=subprocess.PIPE,
+                                       stderr=(subprocess.PIPE if hide_stderr
+                                               else None), **popen_kwargs)
             break
-        except EnvironmentError:
-            e = sys.exc_info()[1]
+        except OSError as e:
             if e.errno == errno.ENOENT:
                 continue
             if verbose:
-                print("unable to run %%s" %% args[0])
+                print("unable to run %%s" %% dispcmd)
                 print(e)
-            return None
+            return None, None
     else:
         if verbose:
             print("unable to find command, tried %%s" %% (commands,))
-        return None
-    stdout = p.communicate()[0].strip()
-    if sys.version >= '3':
-        stdout = stdout.decode()
-    if p.returncode != 0:
+        return None, None
+    stdout = process.communicate()[0].strip().decode()
+    if process.returncode != 0:
         if verbose:
-            print("unable to run %%s (error)" %% args[0])
-        return None
-    return stdout
+            print("unable to run %%s (error)" %% dispcmd)
+            print("stdout was %%s" %% stdout)
+        return None, process.returncode
+    return stdout, process.returncode
+
+
+def versions_from_parentdir(
+    parentdir_prefix: str,
+    root: str,
+    verbose: bool,
+) -> Dict[str, Any]:
+    """Try to determine the version from the parent directory name.
+
+    Source tarballs conventionally unpack into a directory that includes both
+    the project name and a version string. We will also support searching up
+    two directory levels for an appropriately named parent directory
+    """
+    rootdirs = []
+
+    for _ in range(3):
+        dirname = os.path.basename(root)
+        if dirname.startswith(parentdir_prefix):
+            return {"version": dirname[len(parentdir_prefix):],
+                    "full-revisionid": None,
+                    "dirty": False, "error": None, "date": None}
+        rootdirs.append(root)
+        root = os.path.dirname(root)  # up a level
 
+    if verbose:
+        print("Tried directories %%s but none started with prefix %%s" %%
+              (str(rootdirs), parentdir_prefix))
+    raise NotThisMethod("rootdir doesn't start with parentdir_prefix")
 
-def versions_from_parentdir(parentdir_prefix, root, verbose=False):
-    # Source tarballs conventionally unpack into a directory that includes
-    # both the project name and a version string.
-    dirname = os.path.basename(root)
-    if not dirname.startswith(parentdir_prefix):
-        if verbose:
-            print("guessing rootdir is '%%s', but '%%s' doesn't start with prefix '%%s'" %%
-                  (root, dirname, parentdir_prefix))
-        return None
-    return {"version": dirname[len(parentdir_prefix):], "full": ""}
 
-def git_get_keywords(versionfile_abs):
+@register_vcs_handler("git", "get_keywords")
+def git_get_keywords(versionfile_abs: str) -> Dict[str, str]:
+    """Extract version information from the given file."""
     # the code embedded in _version.py can just fetch the value of these
     # keywords. When used from setup.py, we don't want to import _version.py,
     # so we do it with a regexp instead. This function is not used from
     # _version.py.
-    keywords = {}
+    keywords: Dict[str, str] = {}
     try:
-        f = open(versionfile_abs,"r")
-        for line in f.readlines():
-            if line.strip().startswith("git_refnames ="):
-                mo = re.search(r'=\s*"(.*)"', line)
-                if mo:
-                    keywords["refnames"] = mo.group(1)
-            if line.strip().startswith("git_full ="):
-                mo = re.search(r'=\s*"(.*)"', line)
-                if mo:
-                    keywords["full"] = mo.group(1)
-        f.close()
-    except EnvironmentError:
+        with open(versionfile_abs, "r") as fobj:
+            for line in fobj:
+                if line.strip().startswith("git_refnames ="):
+                    mo = re.search(r'=\s*"(.*)"', line)
+                    if mo:
+                        keywords["refnames"] = mo.group(1)
+                if line.strip().startswith("git_full ="):
+                    mo = re.search(r'=\s*"(.*)"', line)
+                    if mo:
+                        keywords["full"] = mo.group(1)
+                if line.strip().startswith("git_date ="):
+                    mo = re.search(r'=\s*"(.*)"', line)
+                    if mo:
+                        keywords["date"] = mo.group(1)
+    except OSError:
         pass
     return keywords
 
-def git_versions_from_keywords(keywords, tag_prefix, verbose=False):
-    if not keywords:
-        return {} # keyword-finding function failed to find keywords
+
+@register_vcs_handler("git", "keywords")
+def git_versions_from_keywords(
+    keywords: Dict[str, str],
+    tag_prefix: str,
+    verbose: bool,
+) -> Dict[str, Any]:
+    """Get version information from git keywords."""
+    if "refnames" not in keywords:
+        raise NotThisMethod("Short version file found")
+    date = keywords.get("date")
+    if date is not None:
+        # Use only the last line.  Previous lines may contain GPG signature
+        # information.
+        date = date.splitlines()[-1]
+
+        # git-2.2.0 added "%%cI", which expands to an ISO-8601 -compliant
+        # datestamp. However we prefer "%%ci" (which expands to an "ISO-8601
+        # -like" string, which we must then edit to make compliant), because
+        # it's been around since git-1.5.3, and it's too difficult to
+        # discover which version we're using, or to work around using an
+        # older one.
+        date = date.strip().replace(" ", "T", 1).replace(" ", "", 1)
     refnames = keywords["refnames"].strip()
     if refnames.startswith("$Format"):
         if verbose:
             print("keywords are unexpanded, not using")
-        return {} # unexpanded, so not in an unpacked git-archive tarball
-    refs = set([r.strip() for r in refnames.strip("()").split(",")])
+        raise NotThisMethod("unexpanded keywords, not a git-archive tarball")
+    refs = {r.strip() for r in refnames.strip("()").split(",")}
     # starting in git-1.8.3, tags are listed as "tag: foo-1.0" instead of
     # just "foo-1.0". If we see a "tag: " prefix, prefer those.
     TAG = "tag: "
-    tags = set([r[len(TAG):] for r in refs if r.startswith(TAG)])
+    tags = {r[len(TAG):] for r in refs if r.startswith(TAG)}
     if not tags:
         # Either we're using git < 1.8.3, or there really are no tags. We use
         # a heuristic: assume all version tags have a digit. The old git %%d
@@ -407,119 +728,529 @@ def git_versions_from_keywords(keywords, tag_prefix, verbose=False):
         # between branches and tags. By ignoring refnames without digits, we
         # filter out many common branch names like "release" and
         # "stabilization", as well as "HEAD" and "master".
-        tags = set([r for r in refs if re.search(r'\d', r)])
+        tags = {r for r in refs if re.search(r'\d', r)}
         if verbose:
-            print("discarding '%%s', no digits" %% ",".join(refs-tags))
+            print("discarding '%%s', no digits" %% ",".join(refs - tags))
     if verbose:
         print("likely tags: %%s" %% ",".join(sorted(tags)))
     for ref in sorted(tags):
         # sorting will prefer e.g. "2.0" over "2.0rc1"
         if ref.startswith(tag_prefix):
             r = ref[len(tag_prefix):]
+            # Filter out refs that exactly match prefix or that don't start
+            # with a number once the prefix is stripped (mostly a concern
+            # when prefix is '')
+            if not re.match(r'\d', r):
+                continue
             if verbose:
                 print("picking %%s" %% r)
-            return { "version": r,
-                     "full": keywords["full"].strip() }
-    # no suitable tags, so we use the full revision id
+            return {"version": r,
+                    "full-revisionid": keywords["full"].strip(),
+                    "dirty": False, "error": None,
+                    "date": date}
+    # no suitable tags, so version is "0+unknown", but full hex is still there
     if verbose:
-        print("no suitable tags, using full revision id")
-    return { "version": keywords["full"].strip(),
-             "full": keywords["full"].strip() }
-
-
-def git_versions_from_vcs(tag_prefix, root, verbose=False):
-    # this runs 'git' from the root of the source tree. This only gets called
-    # if the git-archive 'subst' keywords were *not* expanded, and
-    # _version.py hasn't already been rewritten with a short version string,
-    # meaning we're inside a checked out source tree.
-
-    if not os.path.exists(os.path.join(root, ".git")):
-        if verbose:
-            print("no .git in %%s" %% root)
-        return {}
-
+        print("no suitable tags, using unknown + full revision id")
+    return {"version": "0+unknown",
+            "full-revisionid": keywords["full"].strip(),
+            "dirty": False, "error": "no suitable tags", "date": None}
+
+
+@register_vcs_handler("git", "pieces_from_vcs")
+def git_pieces_from_vcs(
+    tag_prefix: str,
+    root: str,
+    verbose: bool,
+    runner: Callable = run_command
+) -> Dict[str, Any]:
+    """Get version from 'git describe' in the root of the source tree.
+
+    This only gets called if the git-archive 'subst' keywords were *not*
+    expanded, and _version.py hasn't already been rewritten with a short
+    version string, meaning we're inside a checked out source tree.
+    """
     GITS = ["git"]
     if sys.platform == "win32":
         GITS = ["git.cmd", "git.exe"]
-    stdout = run_command(GITS, ["describe", "--tags", "--dirty", "--always"],
-                         cwd=root)
-    if stdout is None:
-        return {}
-    if not stdout.startswith(tag_prefix):
+
+    # GIT_DIR can interfere with correct operation of Versioneer.
+    # It may be intended to be passed to the Versioneer-versioned project,
+    # but that should not change where we get our version from.
+    env = os.environ.copy()
+    env.pop("GIT_DIR", None)
+    runner = functools.partial(runner, env=env)
+
+    _, rc = runner(GITS, ["rev-parse", "--git-dir"], cwd=root,
+                   hide_stderr=not verbose)
+    if rc != 0:
         if verbose:
-            print("tag '%%s' doesn't start with prefix '%%s'" %% (stdout, tag_prefix))
-        return {}
-    tag = stdout[len(tag_prefix):]
-    stdout = run_command(GITS, ["rev-parse", "HEAD"], cwd=root)
-    if stdout is None:
-        return {}
-    full = stdout.strip()
-    if tag.endswith("-dirty"):
-        full += "-dirty"
-    return {"version": tag, "full": full}
-
-
-def get_versions(default={"version": "unknown", "full": ""}, verbose=False):
+            print("Directory %%s not under git control" %% root)
+        raise NotThisMethod("'git rev-parse --git-dir' returned error")
+
+    # if there is a tag matching tag_prefix, this yields TAG-NUM-gHEX[-dirty]
+    # if there isn't one, this yields HEX[-dirty] (no NUM)
+    describe_out, rc = runner(GITS, [
+        "describe", "--tags", "--dirty", "--always", "--long",
+        "--match", f"{tag_prefix}[[:digit:]]*"
+    ], cwd=root)
+    # --long was added in git-1.5.5
+    if describe_out is None:
+        raise NotThisMethod("'git describe' failed")
+    describe_out = describe_out.strip()
+    full_out, rc = runner(GITS, ["rev-parse", "HEAD"], cwd=root)
+    if full_out is None:
+        raise NotThisMethod("'git rev-parse' failed")
+    full_out = full_out.strip()
+
+    pieces: Dict[str, Any] = {}
+    pieces["long"] = full_out
+    pieces["short"] = full_out[:7]  # maybe improved later
+    pieces["error"] = None
+
+    branch_name, rc = runner(GITS, ["rev-parse", "--abbrev-ref", "HEAD"],
+                             cwd=root)
+    # --abbrev-ref was added in git-1.6.3
+    if rc != 0 or branch_name is None:
+        raise NotThisMethod("'git rev-parse --abbrev-ref' returned error")
+    branch_name = branch_name.strip()
+
+    if branch_name == "HEAD":
+        # If we aren't exactly on a branch, pick a branch which represents
+        # the current commit. If all else fails, we are on a branchless
+        # commit.
+        branches, rc = runner(GITS, ["branch", "--contains"], cwd=root)
+        # --contains was added in git-1.5.4
+        if rc != 0 or branches is None:
+            raise NotThisMethod("'git branch --contains' returned error")
+        branches = branches.split("\n")
+
+        # Remove the first line if we're running detached
+        if "(" in branches[0]:
+            branches.pop(0)
+
+        # Strip off the leading "* " from the list of branches.
+        branches = [branch[2:] for branch in branches]
+        if "master" in branches:
+            branch_name = "master"
+        elif not branches:
+            branch_name = None
+        else:
+            # Pick the first branch that is returned. Good or bad.
+            branch_name = branches[0]
+
+    pieces["branch"] = branch_name
+
+    # parse describe_out. It will be like TAG-NUM-gHEX[-dirty] or HEX[-dirty]
+    # TAG might have hyphens.
+    git_describe = describe_out
+
+    # look for -dirty suffix
+    dirty = git_describe.endswith("-dirty")
+    pieces["dirty"] = dirty
+    if dirty:
+        git_describe = git_describe[:git_describe.rindex("-dirty")]
+
+    # now we have TAG-NUM-gHEX or HEX
+
+    if "-" in git_describe:
+        # TAG-NUM-gHEX
+        mo = re.search(r'^(.+)-(\d+)-g([0-9a-f]+)$', git_describe)
+        if not mo:
+            # unparsable. Maybe git-describe is misbehaving?
+            pieces["error"] = ("unable to parse git-describe output: '%%s'"
+                               %% describe_out)
+            return pieces
+
+        # tag
+        full_tag = mo.group(1)
+        if not full_tag.startswith(tag_prefix):
+            if verbose:
+                fmt = "tag '%%s' doesn't start with prefix '%%s'"
+                print(fmt %% (full_tag, tag_prefix))
+            pieces["error"] = ("tag '%%s' doesn't start with prefix '%%s'"
+                               %% (full_tag, tag_prefix))
+            return pieces
+        pieces["closest-tag"] = full_tag[len(tag_prefix):]
+
+        # distance: number of commits since tag
+        pieces["distance"] = int(mo.group(2))
+
+        # commit: short hex revision ID
+        pieces["short"] = mo.group(3)
+
+    else:
+        # HEX: no tags
+        pieces["closest-tag"] = None
+        out, rc = runner(GITS, ["rev-list", "HEAD", "--left-right"], cwd=root)
+        pieces["distance"] = len(out.split())  # total number of commits
+
+    # commit date: see ISO-8601 comment in git_versions_from_keywords()
+    date = runner(GITS, ["show", "-s", "--format=%%ci", "HEAD"], cwd=root)[0].strip()
+    # Use only the last line.  Previous lines may contain GPG signature
+    # information.
+    date = date.splitlines()[-1]
+    pieces["date"] = date.strip().replace(" ", "T", 1).replace(" ", "", 1)
+
+    return pieces
+
+
+def plus_or_dot(pieces: Dict[str, Any]) -> str:
+    """Return a + if we don't already have one, else return a ."""
+    if "+" in pieces.get("closest-tag", ""):
+        return "."
+    return "+"
+
+
+def render_pep440(pieces: Dict[str, Any]) -> str:
+    """Build up version string, with post-release "local version identifier".
+
+    Our goal: TAG[+DISTANCE.gHEX[.dirty]] . Note that if you
+    get a tagged build and then dirty it, you'll get TAG+0.gHEX.dirty
+
+    Exceptions:
+    1: no tags. git_describe was just HEX. 0+untagged.DISTANCE.gHEX[.dirty]
+    """
+    if pieces["closest-tag"]:
+        rendered = pieces["closest-tag"]
+        if pieces["distance"] or pieces["dirty"]:
+            rendered += plus_or_dot(pieces)
+            rendered += "%%d.g%%s" %% (pieces["distance"], pieces["short"])
+            if pieces["dirty"]:
+                rendered += ".dirty"
+    else:
+        # exception #1
+        rendered = "0+untagged.%%d.g%%s" %% (pieces["distance"],
+                                          pieces["short"])
+        if pieces["dirty"]:
+            rendered += ".dirty"
+    return rendered
+
+
+def render_pep440_branch(pieces: Dict[str, Any]) -> str:
+    """TAG[[.dev0]+DISTANCE.gHEX[.dirty]] .
+
+    The ".dev0" means not master branch. Note that .dev0 sorts backwards
+    (a feature branch will appear "older" than the master branch).
+
+    Exceptions:
+    1: no tags. 0[.dev0]+untagged.DISTANCE.gHEX[.dirty]
+    """
+    if pieces["closest-tag"]:
+        rendered = pieces["closest-tag"]
+        if pieces["distance"] or pieces["dirty"]:
+            if pieces["branch"] != "master":
+                rendered += ".dev0"
+            rendered += plus_or_dot(pieces)
+            rendered += "%%d.g%%s" %% (pieces["distance"], pieces["short"])
+            if pieces["dirty"]:
+                rendered += ".dirty"
+    else:
+        # exception #1
+        rendered = "0"
+        if pieces["branch"] != "master":
+            rendered += ".dev0"
+        rendered += "+untagged.%%d.g%%s" %% (pieces["distance"],
+                                          pieces["short"])
+        if pieces["dirty"]:
+            rendered += ".dirty"
+    return rendered
+
+
+def pep440_split_post(ver: str) -> Tuple[str, Optional[int]]:
+    """Split pep440 version string at the post-release segment.
+
+    Returns the release segments before the post-release and the
+    post-release version number (or -1 if no post-release segment is present).
+    """
+    vc = str.split(ver, ".post")
+    return vc[0], int(vc[1] or 0) if len(vc) == 2 else None
+
+
+def render_pep440_pre(pieces: Dict[str, Any]) -> str:
+    """TAG[.postN.devDISTANCE] -- No -dirty.
+
+    Exceptions:
+    1: no tags. 0.post0.devDISTANCE
+    """
+    if pieces["closest-tag"]:
+        if pieces["distance"]:
+            # update the post release segment
+            tag_version, post_version = pep440_split_post(pieces["closest-tag"])
+            rendered = tag_version
+            if post_version is not None:
+                rendered += ".post%%d.dev%%d" %% (post_version + 1, pieces["distance"])
+            else:
+                rendered += ".post0.dev%%d" %% (pieces["distance"])
+        else:
+            # no commits, use the tag as the version
+            rendered = pieces["closest-tag"]
+    else:
+        # exception #1
+        rendered = "0.post0.dev%%d" %% pieces["distance"]
+    return rendered
+
+
+def render_pep440_post(pieces: Dict[str, Any]) -> str:
+    """TAG[.postDISTANCE[.dev0]+gHEX] .
+
+    The ".dev0" means dirty. Note that .dev0 sorts backwards
+    (a dirty tree will appear "older" than the corresponding clean one),
+    but you shouldn't be releasing software with -dirty anyways.
+
+    Exceptions:
+    1: no tags. 0.postDISTANCE[.dev0]
+    """
+    if pieces["closest-tag"]:
+        rendered = pieces["closest-tag"]
+        if pieces["distance"] or pieces["dirty"]:
+            rendered += ".post%%d" %% pieces["distance"]
+            if pieces["dirty"]:
+                rendered += ".dev0"
+            rendered += plus_or_dot(pieces)
+            rendered += "g%%s" %% pieces["short"]
+    else:
+        # exception #1
+        rendered = "0.post%%d" %% pieces["distance"]
+        if pieces["dirty"]:
+            rendered += ".dev0"
+        rendered += "+g%%s" %% pieces["short"]
+    return rendered
+
+
+def render_pep440_post_branch(pieces: Dict[str, Any]) -> str:
+    """TAG[.postDISTANCE[.dev0]+gHEX[.dirty]] .
+
+    The ".dev0" means not master branch.
+
+    Exceptions:
+    1: no tags. 0.postDISTANCE[.dev0]+gHEX[.dirty]
+    """
+    if pieces["closest-tag"]:
+        rendered = pieces["closest-tag"]
+        if pieces["distance"] or pieces["dirty"]:
+            rendered += ".post%%d" %% pieces["distance"]
+            if pieces["branch"] != "master":
+                rendered += ".dev0"
+            rendered += plus_or_dot(pieces)
+            rendered += "g%%s" %% pieces["short"]
+            if pieces["dirty"]:
+                rendered += ".dirty"
+    else:
+        # exception #1
+        rendered = "0.post%%d" %% pieces["distance"]
+        if pieces["branch"] != "master":
+            rendered += ".dev0"
+        rendered += "+g%%s" %% pieces["short"]
+        if pieces["dirty"]:
+            rendered += ".dirty"
+    return rendered
+
+
+def render_pep440_old(pieces: Dict[str, Any]) -> str:
+    """TAG[.postDISTANCE[.dev0]] .
+
+    The ".dev0" means dirty.
+
+    Exceptions:
+    1: no tags. 0.postDISTANCE[.dev0]
+    """
+    if pieces["closest-tag"]:
+        rendered = pieces["closest-tag"]
+        if pieces["distance"] or pieces["dirty"]:
+            rendered += ".post%%d" %% pieces["distance"]
+            if pieces["dirty"]:
+                rendered += ".dev0"
+    else:
+        # exception #1
+        rendered = "0.post%%d" %% pieces["distance"]
+        if pieces["dirty"]:
+            rendered += ".dev0"
+    return rendered
+
+
+def render_git_describe(pieces: Dict[str, Any]) -> str:
+    """TAG[-DISTANCE-gHEX][-dirty].
+
+    Like 'git describe --tags --dirty --always'.
+
+    Exceptions:
+    1: no tags. HEX[-dirty]  (note: no 'g' prefix)
+    """
+    if pieces["closest-tag"]:
+        rendered = pieces["closest-tag"]
+        if pieces["distance"]:
+            rendered += "-%%d-g%%s" %% (pieces["distance"], pieces["short"])
+    else:
+        # exception #1
+        rendered = pieces["short"]
+    if pieces["dirty"]:
+        rendered += "-dirty"
+    return rendered
+
+
+def render_git_describe_long(pieces: Dict[str, Any]) -> str:
+    """TAG-DISTANCE-gHEX[-dirty].
+
+    Like 'git describe --tags --dirty --always -long'.
+    The distance/hash is unconditional.
+
+    Exceptions:
+    1: no tags. HEX[-dirty]  (note: no 'g' prefix)
+    """
+    if pieces["closest-tag"]:
+        rendered = pieces["closest-tag"]
+        rendered += "-%%d-g%%s" %% (pieces["distance"], pieces["short"])
+    else:
+        # exception #1
+        rendered = pieces["short"]
+    if pieces["dirty"]:
+        rendered += "-dirty"
+    return rendered
+
+
+def render(pieces: Dict[str, Any], style: str) -> Dict[str, Any]:
+    """Render the given version pieces into the requested style."""
+    if pieces["error"]:
+        return {"version": "unknown",
+                "full-revisionid": pieces.get("long"),
+                "dirty": None,
+                "error": pieces["error"],
+                "date": None}
+
+    if not style or style == "default":
+        style = "pep440"  # the default
+
+    if style == "pep440":
+        rendered = render_pep440(pieces)
+    elif style == "pep440-branch":
+        rendered = render_pep440_branch(pieces)
+    elif style == "pep440-pre":
+        rendered = render_pep440_pre(pieces)
+    elif style == "pep440-post":
+        rendered = render_pep440_post(pieces)
+    elif style == "pep440-post-branch":
+        rendered = render_pep440_post_branch(pieces)
+    elif style == "pep440-old":
+        rendered = render_pep440_old(pieces)
+    elif style == "git-describe":
+        rendered = render_git_describe(pieces)
+    elif style == "git-describe-long":
+        rendered = render_git_describe_long(pieces)
+    else:
+        raise ValueError("unknown style '%%s'" %% style)
+
+    return {"version": rendered, "full-revisionid": pieces["long"],
+            "dirty": pieces["dirty"], "error": None,
+            "date": pieces.get("date")}
+
+
+def get_versions() -> Dict[str, Any]:
+    """Get version information or return default if unable to do so."""
     # I am in _version.py, which lives at ROOT/VERSIONFILE_SOURCE. If we have
     # __file__, we can work backwards from there to the root. Some
     # py2exe/bbfreeze/non-CPython implementations don't do __file__, in which
     # case we can only use expanded keywords.
 
-    keywords = { "refnames": git_refnames, "full": git_full }
-    ver = git_versions_from_keywords(keywords, tag_prefix, verbose)
-    if ver:
-        return ver
+    cfg = get_config()
+    verbose = cfg.verbose
 
     try:
-        root = os.path.abspath(__file__)
+        return git_versions_from_keywords(get_keywords(), cfg.tag_prefix,
+                                          verbose)
+    except NotThisMethod:
+        pass
+
+    try:
+        root = os.path.realpath(__file__)
         # versionfile_source is the relative path from the top of the source
         # tree (where the .git directory might live) to this file. Invert
         # this to find the root from __file__.
-        for i in range(len(versionfile_source.split(os.sep))):
+        for _ in cfg.versionfile_source.split('/'):
             root = os.path.dirname(root)
     except NameError:
-        return default
+        return {"version": "0+unknown", "full-revisionid": None,
+                "dirty": None,
+                "error": "unable to find root of source tree",
+                "date": None}
+
+    try:
+        pieces = git_pieces_from_vcs(cfg.tag_prefix, root, verbose)
+        return render(pieces, cfg.style)
+    except NotThisMethod:
+        pass
+
+    try:
+        if cfg.parentdir_prefix:
+            return versions_from_parentdir(cfg.parentdir_prefix, root, verbose)
+    except NotThisMethod:
+        pass
 
-    return (git_versions_from_vcs(tag_prefix, root, verbose)
-            or versions_from_parentdir(parentdir_prefix, root, verbose)
-            or default)
+    return {"version": "0+unknown", "full-revisionid": None,
+            "dirty": None,
+            "error": "unable to compute version", "date": None}
 '''
 
-def git_get_keywords(versionfile_abs):
+
+@register_vcs_handler("git", "get_keywords")
+def git_get_keywords(versionfile_abs: str) -> Dict[str, str]:
+    """Extract version information from the given file."""
     # the code embedded in _version.py can just fetch the value of these
     # keywords. When used from setup.py, we don't want to import _version.py,
     # so we do it with a regexp instead. This function is not used from
     # _version.py.
-    keywords = {}
+    keywords: Dict[str, str] = {}
     try:
-        f = open(versionfile_abs,"r")
-        for line in f.readlines():
-            if line.strip().startswith("git_refnames ="):
-                mo = re.search(r'=\s*"(.*)"', line)
-                if mo:
-                    keywords["refnames"] = mo.group(1)
-            if line.strip().startswith("git_full ="):
-                mo = re.search(r'=\s*"(.*)"', line)
-                if mo:
-                    keywords["full"] = mo.group(1)
-        f.close()
-    except EnvironmentError:
+        with open(versionfile_abs, "r") as fobj:
+            for line in fobj:
+                if line.strip().startswith("git_refnames ="):
+                    mo = re.search(r'=\s*"(.*)"', line)
+                    if mo:
+                        keywords["refnames"] = mo.group(1)
+                if line.strip().startswith("git_full ="):
+                    mo = re.search(r'=\s*"(.*)"', line)
+                    if mo:
+                        keywords["full"] = mo.group(1)
+                if line.strip().startswith("git_date ="):
+                    mo = re.search(r'=\s*"(.*)"', line)
+                    if mo:
+                        keywords["date"] = mo.group(1)
+    except OSError:
         pass
     return keywords
 
-def git_versions_from_keywords(keywords, tag_prefix, verbose=False):
-    if not keywords:
-        return {} # keyword-finding function failed to find keywords
+
+@register_vcs_handler("git", "keywords")
+def git_versions_from_keywords(
+    keywords: Dict[str, str],
+    tag_prefix: str,
+    verbose: bool,
+) -> Dict[str, Any]:
+    """Get version information from git keywords."""
+    if "refnames" not in keywords:
+        raise NotThisMethod("Short version file found")
+    date = keywords.get("date")
+    if date is not None:
+        # Use only the last line.  Previous lines may contain GPG signature
+        # information.
+        date = date.splitlines()[-1]
+
+        # git-2.2.0 added "%cI", which expands to an ISO-8601 -compliant
+        # datestamp. However we prefer "%ci" (which expands to an "ISO-8601
+        # -like" string, which we must then edit to make compliant), because
+        # it's been around since git-1.5.3, and it's too difficult to
+        # discover which version we're using, or to work around using an
+        # older one.
+        date = date.strip().replace(" ", "T", 1).replace(" ", "", 1)
     refnames = keywords["refnames"].strip()
     if refnames.startswith("$Format"):
         if verbose:
             print("keywords are unexpanded, not using")
-        return {} # unexpanded, so not in an unpacked git-archive tarball
-    refs = set([r.strip() for r in refnames.strip("()").split(",")])
+        raise NotThisMethod("unexpanded keywords, not a git-archive tarball")
+    refs = {r.strip() for r in refnames.strip("()").split(",")}
     # starting in git-1.8.3, tags are listed as "tag: foo-1.0" instead of
     # just "foo-1.0". If we see a "tag: " prefix, prefer those.
     TAG = "tag: "
-    tags = set([r[len(TAG):] for r in refs if r.startswith(TAG)])
+    tags = {r[len(TAG):] for r in refs if r.startswith(TAG)}
     if not tags:
         # Either we're using git < 1.8.3, or there really are no tags. We use
         # a heuristic: assume all version tags have a digit. The old git %d
@@ -528,348 +1259,1019 @@ def git_versions_from_keywords(keywords, tag_prefix, verbose=False):
         # between branches and tags. By ignoring refnames without digits, we
         # filter out many common branch names like "release" and
         # "stabilization", as well as "HEAD" and "master".
-        tags = set([r for r in refs if re.search(r'\d', r)])
+        tags = {r for r in refs if re.search(r'\d', r)}
         if verbose:
-            print("discarding '%s', no digits" % ",".join(refs-tags))
+            print("discarding '%s', no digits" % ",".join(refs - tags))
     if verbose:
         print("likely tags: %s" % ",".join(sorted(tags)))
     for ref in sorted(tags):
         # sorting will prefer e.g. "2.0" over "2.0rc1"
         if ref.startswith(tag_prefix):
             r = ref[len(tag_prefix):]
+            # Filter out refs that exactly match prefix or that don't start
+            # with a number once the prefix is stripped (mostly a concern
+            # when prefix is '')
+            if not re.match(r'\d', r):
+                continue
             if verbose:
                 print("picking %s" % r)
-            return { "version": r,
-                     "full": keywords["full"].strip() }
-    # no suitable tags, so we use the full revision id
+            return {"version": r,
+                    "full-revisionid": keywords["full"].strip(),
+                    "dirty": False, "error": None,
+                    "date": date}
+    # no suitable tags, so version is "0+unknown", but full hex is still there
     if verbose:
-        print("no suitable tags, using full revision id")
-    return { "version": keywords["full"].strip(),
-             "full": keywords["full"].strip() }
-
-
-def git_versions_from_vcs(tag_prefix, root, verbose=False):
-    # this runs 'git' from the root of the source tree. This only gets called
-    # if the git-archive 'subst' keywords were *not* expanded, and
-    # _version.py hasn't already been rewritten with a short version string,
-    # meaning we're inside a checked out source tree.
-
-    if not os.path.exists(os.path.join(root, ".git")):
-        if verbose:
-            print("no .git in %s" % root)
-        return {}
-
+        print("no suitable tags, using unknown + full revision id")
+    return {"version": "0+unknown",
+            "full-revisionid": keywords["full"].strip(),
+            "dirty": False, "error": "no suitable tags", "date": None}
+
+
+@register_vcs_handler("git", "pieces_from_vcs")
+def git_pieces_from_vcs(
+    tag_prefix: str,
+    root: str,
+    verbose: bool,
+    runner: Callable = run_command
+) -> Dict[str, Any]:
+    """Get version from 'git describe' in the root of the source tree.
+
+    This only gets called if the git-archive 'subst' keywords were *not*
+    expanded, and _version.py hasn't already been rewritten with a short
+    version string, meaning we're inside a checked out source tree.
+    """
     GITS = ["git"]
     if sys.platform == "win32":
         GITS = ["git.cmd", "git.exe"]
-    stdout = run_command(GITS, ["describe", "--tags", "--dirty", "--always"],
-                         cwd=root)
-    if stdout is None:
-        return {}
-    if not stdout.startswith(tag_prefix):
+
+    # GIT_DIR can interfere with correct operation of Versioneer.
+    # It may be intended to be passed to the Versioneer-versioned project,
+    # but that should not change where we get our version from.
+    env = os.environ.copy()
+    env.pop("GIT_DIR", None)
+    runner = functools.partial(runner, env=env)
+
+    _, rc = runner(GITS, ["rev-parse", "--git-dir"], cwd=root,
+                   hide_stderr=not verbose)
+    if rc != 0:
         if verbose:
-            print("tag '%s' doesn't start with prefix '%s'" % (stdout, tag_prefix))
-        return {}
-    tag = stdout[len(tag_prefix):]
-    stdout = run_command(GITS, ["rev-parse", "HEAD"], cwd=root)
-    if stdout is None:
-        return {}
-    full = stdout.strip()
-    if tag.endswith("-dirty"):
-        full += "-dirty"
-    return {"version": tag, "full": full}
-
-
-def do_vcs_install(manifest_in, versionfile_source, ipy):
+            print("Directory %s not under git control" % root)
+        raise NotThisMethod("'git rev-parse --git-dir' returned error")
+
+    # if there is a tag matching tag_prefix, this yields TAG-NUM-gHEX[-dirty]
+    # if there isn't one, this yields HEX[-dirty] (no NUM)
+    describe_out, rc = runner(GITS, [
+        "describe", "--tags", "--dirty", "--always", "--long",
+        "--match", f"{tag_prefix}[[:digit:]]*"
+    ], cwd=root)
+    # --long was added in git-1.5.5
+    if describe_out is None:
+        raise NotThisMethod("'git describe' failed")
+    describe_out = describe_out.strip()
+    full_out, rc = runner(GITS, ["rev-parse", "HEAD"], cwd=root)
+    if full_out is None:
+        raise NotThisMethod("'git rev-parse' failed")
+    full_out = full_out.strip()
+
+    pieces: Dict[str, Any] = {}
+    pieces["long"] = full_out
+    pieces["short"] = full_out[:7]  # maybe improved later
+    pieces["error"] = None
+
+    branch_name, rc = runner(GITS, ["rev-parse", "--abbrev-ref", "HEAD"],
+                             cwd=root)
+    # --abbrev-ref was added in git-1.6.3
+    if rc != 0 or branch_name is None:
+        raise NotThisMethod("'git rev-parse --abbrev-ref' returned error")
+    branch_name = branch_name.strip()
+
+    if branch_name == "HEAD":
+        # If we aren't exactly on a branch, pick a branch which represents
+        # the current commit. If all else fails, we are on a branchless
+        # commit.
+        branches, rc = runner(GITS, ["branch", "--contains"], cwd=root)
+        # --contains was added in git-1.5.4
+        if rc != 0 or branches is None:
+            raise NotThisMethod("'git branch --contains' returned error")
+        branches = branches.split("\n")
+
+        # Remove the first line if we're running detached
+        if "(" in branches[0]:
+            branches.pop(0)
+
+        # Strip off the leading "* " from the list of branches.
+        branches = [branch[2:] for branch in branches]
+        if "master" in branches:
+            branch_name = "master"
+        elif not branches:
+            branch_name = None
+        else:
+            # Pick the first branch that is returned. Good or bad.
+            branch_name = branches[0]
+
+    pieces["branch"] = branch_name
+
+    # parse describe_out. It will be like TAG-NUM-gHEX[-dirty] or HEX[-dirty]
+    # TAG might have hyphens.
+    git_describe = describe_out
+
+    # look for -dirty suffix
+    dirty = git_describe.endswith("-dirty")
+    pieces["dirty"] = dirty
+    if dirty:
+        git_describe = git_describe[:git_describe.rindex("-dirty")]
+
+    # now we have TAG-NUM-gHEX or HEX
+
+    if "-" in git_describe:
+        # TAG-NUM-gHEX
+        mo = re.search(r'^(.+)-(\d+)-g([0-9a-f]+)$', git_describe)
+        if not mo:
+            # unparsable. Maybe git-describe is misbehaving?
+            pieces["error"] = ("unable to parse git-describe output: '%s'"
+                               % describe_out)
+            return pieces
+
+        # tag
+        full_tag = mo.group(1)
+        if not full_tag.startswith(tag_prefix):
+            if verbose:
+                fmt = "tag '%s' doesn't start with prefix '%s'"
+                print(fmt % (full_tag, tag_prefix))
+            pieces["error"] = ("tag '%s' doesn't start with prefix '%s'"
+                               % (full_tag, tag_prefix))
+            return pieces
+        pieces["closest-tag"] = full_tag[len(tag_prefix):]
+
+        # distance: number of commits since tag
+        pieces["distance"] = int(mo.group(2))
+
+        # commit: short hex revision ID
+        pieces["short"] = mo.group(3)
+
+    else:
+        # HEX: no tags
+        pieces["closest-tag"] = None
+        out, rc = runner(GITS, ["rev-list", "HEAD", "--left-right"], cwd=root)
+        pieces["distance"] = len(out.split())  # total number of commits
+
+    # commit date: see ISO-8601 comment in git_versions_from_keywords()
+    date = runner(GITS, ["show", "-s", "--format=%ci", "HEAD"], cwd=root)[0].strip()
+    # Use only the last line.  Previous lines may contain GPG signature
+    # information.
+    date = date.splitlines()[-1]
+    pieces["date"] = date.strip().replace(" ", "T", 1).replace(" ", "", 1)
+
+    return pieces
+
+
+def do_vcs_install(versionfile_source: str, ipy: Optional[str]) -> None:
+    """Git-specific installation logic for Versioneer.
+
+    For Git, this means creating/changing .gitattributes to mark _version.py
+    for export-subst keyword substitution.
+    """
     GITS = ["git"]
     if sys.platform == "win32":
         GITS = ["git.cmd", "git.exe"]
-    files = [manifest_in, versionfile_source, ipy]
-    try:
-        me = __file__
-        if me.endswith(".pyc") or me.endswith(".pyo"):
-            me = os.path.splitext(me)[0] + ".py"
-        versioneer_file = os.path.relpath(me)
-    except NameError:
-        versioneer_file = "versioneer.py"
-    files.append(versioneer_file)
+    files = [versionfile_source]
+    if ipy:
+        files.append(ipy)
+    if "VERSIONEER_PEP518" not in globals():
+        try:
+            my_path = __file__
+            if my_path.endswith((".pyc", ".pyo")):
+                my_path = os.path.splitext(my_path)[0] + ".py"
+            versioneer_file = os.path.relpath(my_path)
+        except NameError:
+            versioneer_file = "versioneer.py"
+        files.append(versioneer_file)
     present = False
     try:
-        f = open(".gitattributes", "r")
-        for line in f.readlines():
-            if line.strip().startswith(versionfile_source):
-                if "export-subst" in line.strip().split()[1:]:
-                    present = True
-        f.close()
-    except EnvironmentError:
-        pass    
+        with open(".gitattributes", "r") as fobj:
+            for line in fobj:
+                if line.strip().startswith(versionfile_source):
+                    if "export-subst" in line.strip().split()[1:]:
+                        present = True
+                        break
+    except OSError:
+        pass
     if not present:
-        f = open(".gitattributes", "a+")
-        f.write("%s export-subst\n" % versionfile_source)
-        f.close()
+        with open(".gitattributes", "a+") as fobj:
+            fobj.write(f"{versionfile_source} export-subst\n")
         files.append(".gitattributes")
     run_command(GITS, ["add", "--"] + files)
 
-def versions_from_parentdir(parentdir_prefix, root, verbose=False):
-    # Source tarballs conventionally unpack into a directory that includes
-    # both the project name and a version string.
-    dirname = os.path.basename(root)
-    if not dirname.startswith(parentdir_prefix):
-        if verbose:
-            print("guessing rootdir is '%s', but '%s' doesn't start with prefix '%s'" %
-                  (root, dirname, parentdir_prefix))
-        return None
-    return {"version": dirname[len(parentdir_prefix):], "full": ""}
+
+def versions_from_parentdir(
+    parentdir_prefix: str,
+    root: str,
+    verbose: bool,
+) -> Dict[str, Any]:
+    """Try to determine the version from the parent directory name.
+
+    Source tarballs conventionally unpack into a directory that includes both
+    the project name and a version string. We will also support searching up
+    two directory levels for an appropriately named parent directory
+    """
+    rootdirs = []
+
+    for _ in range(3):
+        dirname = os.path.basename(root)
+        if dirname.startswith(parentdir_prefix):
+            return {"version": dirname[len(parentdir_prefix):],
+                    "full-revisionid": None,
+                    "dirty": False, "error": None, "date": None}
+        rootdirs.append(root)
+        root = os.path.dirname(root)  # up a level
+
+    if verbose:
+        print("Tried directories %s but none started with prefix %s" %
+              (str(rootdirs), parentdir_prefix))
+    raise NotThisMethod("rootdir doesn't start with parentdir_prefix")
+
 
 SHORT_VERSION_PY = """
-# This file was generated by 'versioneer.py' (0.11) from
+# This file was generated by 'versioneer.py' (0.29) from
 # revision-control system data, or from the parent directory name of an
 # unpacked source archive. Distribution tarballs contain a pre-generated copy
 # of this file.
 
-version_version = '%(version)s'
-version_full = '%(full)s'
-def get_versions(default={}, verbose=False):
-    return {'version': version_version, 'full': version_full}
+import json
 
+version_json = '''
+%s
+'''  # END VERSION_JSON
+
+
+def get_versions():
+    return json.loads(version_json)
 """
 
-DEFAULT = {"version": "unknown", "full": "unknown"}
 
-def versions_from_file(filename):
-    versions = {}
+def versions_from_file(filename: str) -> Dict[str, Any]:
+    """Try to determine the version from _version.py if present."""
     try:
         with open(filename) as f:
-            for line in f.readlines():
-                mo = re.match("version_version = '([^']+)'", line)
-                if mo:
-                    versions["version"] = mo.group(1)
-                mo = re.match("version_full = '([^']+)'", line)
-                if mo:
-                    versions["full"] = mo.group(1)
-    except EnvironmentError:
-        return {}
-
-    return versions
-
-def write_to_version_file(filename, versions):
+            contents = f.read()
+    except OSError:
+        raise NotThisMethod("unable to read _version.py")
+    mo = re.search(r"version_json = '''\n(.*)'''  # END VERSION_JSON",
+                   contents, re.M | re.S)
+    if not mo:
+        mo = re.search(r"version_json = '''\r\n(.*)'''  # END VERSION_JSON",
+                       contents, re.M | re.S)
+    if not mo:
+        raise NotThisMethod("no version_json in _version.py")
+    return json.loads(mo.group(1))
+
+
+def write_to_version_file(filename: str, versions: Dict[str, Any]) -> None:
+    """Write the given version number to the given _version.py file."""
+    contents = json.dumps(versions, sort_keys=True,
+                          indent=1, separators=(",", ": "))
     with open(filename, "w") as f:
-        f.write(SHORT_VERSION_PY % versions)
+        f.write(SHORT_VERSION_PY % contents)
 
     print("set %s to '%s'" % (filename, versions["version"]))
 
 
-def get_root():
-    try:
-        return os.path.dirname(os.path.abspath(__file__))
-    except NameError:
-        return os.path.dirname(os.path.abspath(sys.argv[0]))
-
-def vcs_function(vcs, suffix):
-    return getattr(sys.modules[__name__], '%s_%s' % (vcs, suffix), None)
-
-def get_versions(default=DEFAULT, verbose=False):
-    # returns dict with two keys: 'version' and 'full'
-    assert versionfile_source is not None, "please set versioneer.versionfile_source"
-    assert tag_prefix is not None, "please set versioneer.tag_prefix"
-    assert parentdir_prefix is not None, "please set versioneer.parentdir_prefix"
-    assert VCS is not None, "please set versioneer.VCS"
-
-    # I am in versioneer.py, which must live at the top of the source tree,
-    # which we use to compute the root directory. py2exe/bbfreeze/non-CPython
-    # don't have __file__, in which case we fall back to sys.argv[0] (which
-    # ought to be the setup.py script). We prefer __file__ since that's more
-    # robust in cases where setup.py was invoked in some weird way (e.g. pip)
+def plus_or_dot(pieces: Dict[str, Any]) -> str:
+    """Return a + if we don't already have one, else return a ."""
+    if "+" in pieces.get("closest-tag", ""):
+        return "."
+    return "+"
+
+
+def render_pep440(pieces: Dict[str, Any]) -> str:
+    """Build up version string, with post-release "local version identifier".
+
+    Our goal: TAG[+DISTANCE.gHEX[.dirty]] . Note that if you
+    get a tagged build and then dirty it, you'll get TAG+0.gHEX.dirty
+
+    Exceptions:
+    1: no tags. git_describe was just HEX. 0+untagged.DISTANCE.gHEX[.dirty]
+    """
+    if pieces["closest-tag"]:
+        rendered = pieces["closest-tag"]
+        if pieces["distance"] or pieces["dirty"]:
+            rendered += plus_or_dot(pieces)
+            rendered += "%d.g%s" % (pieces["distance"], pieces["short"])
+            if pieces["dirty"]:
+                rendered += ".dirty"
+    else:
+        # exception #1
+        rendered = "0+untagged.%d.g%s" % (pieces["distance"],
+                                          pieces["short"])
+        if pieces["dirty"]:
+            rendered += ".dirty"
+    return rendered
+
+
+def render_pep440_branch(pieces: Dict[str, Any]) -> str:
+    """TAG[[.dev0]+DISTANCE.gHEX[.dirty]] .
+
+    The ".dev0" means not master branch. Note that .dev0 sorts backwards
+    (a feature branch will appear "older" than the master branch).
+
+    Exceptions:
+    1: no tags. 0[.dev0]+untagged.DISTANCE.gHEX[.dirty]
+    """
+    if pieces["closest-tag"]:
+        rendered = pieces["closest-tag"]
+        if pieces["distance"] or pieces["dirty"]:
+            if pieces["branch"] != "master":
+                rendered += ".dev0"
+            rendered += plus_or_dot(pieces)
+            rendered += "%d.g%s" % (pieces["distance"], pieces["short"])
+            if pieces["dirty"]:
+                rendered += ".dirty"
+    else:
+        # exception #1
+        rendered = "0"
+        if pieces["branch"] != "master":
+            rendered += ".dev0"
+        rendered += "+untagged.%d.g%s" % (pieces["distance"],
+                                          pieces["short"])
+        if pieces["dirty"]:
+            rendered += ".dirty"
+    return rendered
+
+
+def pep440_split_post(ver: str) -> Tuple[str, Optional[int]]:
+    """Split pep440 version string at the post-release segment.
+
+    Returns the release segments before the post-release and the
+    post-release version number (or -1 if no post-release segment is present).
+    """
+    vc = str.split(ver, ".post")
+    return vc[0], int(vc[1] or 0) if len(vc) == 2 else None
+
+
+def render_pep440_pre(pieces: Dict[str, Any]) -> str:
+    """TAG[.postN.devDISTANCE] -- No -dirty.
+
+    Exceptions:
+    1: no tags. 0.post0.devDISTANCE
+    """
+    if pieces["closest-tag"]:
+        if pieces["distance"]:
+            # update the post release segment
+            tag_version, post_version = pep440_split_post(pieces["closest-tag"])
+            rendered = tag_version
+            if post_version is not None:
+                rendered += ".post%d.dev%d" % (post_version + 1, pieces["distance"])
+            else:
+                rendered += ".post0.dev%d" % (pieces["distance"])
+        else:
+            # no commits, use the tag as the version
+            rendered = pieces["closest-tag"]
+    else:
+        # exception #1
+        rendered = "0.post0.dev%d" % pieces["distance"]
+    return rendered
+
+
+def render_pep440_post(pieces: Dict[str, Any]) -> str:
+    """TAG[.postDISTANCE[.dev0]+gHEX] .
+
+    The ".dev0" means dirty. Note that .dev0 sorts backwards
+    (a dirty tree will appear "older" than the corresponding clean one),
+    but you shouldn't be releasing software with -dirty anyways.
+
+    Exceptions:
+    1: no tags. 0.postDISTANCE[.dev0]
+    """
+    if pieces["closest-tag"]:
+        rendered = pieces["closest-tag"]
+        if pieces["distance"] or pieces["dirty"]:
+            rendered += ".post%d" % pieces["distance"]
+            if pieces["dirty"]:
+                rendered += ".dev0"
+            rendered += plus_or_dot(pieces)
+            rendered += "g%s" % pieces["short"]
+    else:
+        # exception #1
+        rendered = "0.post%d" % pieces["distance"]
+        if pieces["dirty"]:
+            rendered += ".dev0"
+        rendered += "+g%s" % pieces["short"]
+    return rendered
+
+
+def render_pep440_post_branch(pieces: Dict[str, Any]) -> str:
+    """TAG[.postDISTANCE[.dev0]+gHEX[.dirty]] .
+
+    The ".dev0" means not master branch.
+
+    Exceptions:
+    1: no tags. 0.postDISTANCE[.dev0]+gHEX[.dirty]
+    """
+    if pieces["closest-tag"]:
+        rendered = pieces["closest-tag"]
+        if pieces["distance"] or pieces["dirty"]:
+            rendered += ".post%d" % pieces["distance"]
+            if pieces["branch"] != "master":
+                rendered += ".dev0"
+            rendered += plus_or_dot(pieces)
+            rendered += "g%s" % pieces["short"]
+            if pieces["dirty"]:
+                rendered += ".dirty"
+    else:
+        # exception #1
+        rendered = "0.post%d" % pieces["distance"]
+        if pieces["branch"] != "master":
+            rendered += ".dev0"
+        rendered += "+g%s" % pieces["short"]
+        if pieces["dirty"]:
+            rendered += ".dirty"
+    return rendered
+
+
+def render_pep440_old(pieces: Dict[str, Any]) -> str:
+    """TAG[.postDISTANCE[.dev0]] .
+
+    The ".dev0" means dirty.
+
+    Exceptions:
+    1: no tags. 0.postDISTANCE[.dev0]
+    """
+    if pieces["closest-tag"]:
+        rendered = pieces["closest-tag"]
+        if pieces["distance"] or pieces["dirty"]:
+            rendered += ".post%d" % pieces["distance"]
+            if pieces["dirty"]:
+                rendered += ".dev0"
+    else:
+        # exception #1
+        rendered = "0.post%d" % pieces["distance"]
+        if pieces["dirty"]:
+            rendered += ".dev0"
+    return rendered
+
+
+def render_git_describe(pieces: Dict[str, Any]) -> str:
+    """TAG[-DISTANCE-gHEX][-dirty].
+
+    Like 'git describe --tags --dirty --always'.
+
+    Exceptions:
+    1: no tags. HEX[-dirty]  (note: no 'g' prefix)
+    """
+    if pieces["closest-tag"]:
+        rendered = pieces["closest-tag"]
+        if pieces["distance"]:
+            rendered += "-%d-g%s" % (pieces["distance"], pieces["short"])
+    else:
+        # exception #1
+        rendered = pieces["short"]
+    if pieces["dirty"]:
+        rendered += "-dirty"
+    return rendered
+
+
+def render_git_describe_long(pieces: Dict[str, Any]) -> str:
+    """TAG-DISTANCE-gHEX[-dirty].
+
+    Like 'git describe --tags --dirty --always -long'.
+    The distance/hash is unconditional.
+
+    Exceptions:
+    1: no tags. HEX[-dirty]  (note: no 'g' prefix)
+    """
+    if pieces["closest-tag"]:
+        rendered = pieces["closest-tag"]
+        rendered += "-%d-g%s" % (pieces["distance"], pieces["short"])
+    else:
+        # exception #1
+        rendered = pieces["short"]
+    if pieces["dirty"]:
+        rendered += "-dirty"
+    return rendered
+
+
+def render(pieces: Dict[str, Any], style: str) -> Dict[str, Any]:
+    """Render the given version pieces into the requested style."""
+    if pieces["error"]:
+        return {"version": "unknown",
+                "full-revisionid": pieces.get("long"),
+                "dirty": None,
+                "error": pieces["error"],
+                "date": None}
+
+    if not style or style == "default":
+        style = "pep440"  # the default
+
+    if style == "pep440":
+        rendered = render_pep440(pieces)
+    elif style == "pep440-branch":
+        rendered = render_pep440_branch(pieces)
+    elif style == "pep440-pre":
+        rendered = render_pep440_pre(pieces)
+    elif style == "pep440-post":
+        rendered = render_pep440_post(pieces)
+    elif style == "pep440-post-branch":
+        rendered = render_pep440_post_branch(pieces)
+    elif style == "pep440-old":
+        rendered = render_pep440_old(pieces)
+    elif style == "git-describe":
+        rendered = render_git_describe(pieces)
+    elif style == "git-describe-long":
+        rendered = render_git_describe_long(pieces)
+    else:
+        raise ValueError("unknown style '%s'" % style)
+
+    return {"version": rendered, "full-revisionid": pieces["long"],
+            "dirty": pieces["dirty"], "error": None,
+            "date": pieces.get("date")}
+
+
+class VersioneerBadRootError(Exception):
+    """The project root directory is unknown or missing key files."""
+
+
+def get_versions(verbose: bool = False) -> Dict[str, Any]:
+    """Get the project version from whatever source is available.
+
+    Returns dict with two keys: 'version' and 'full'.
+    """
+    if "versioneer" in sys.modules:
+        # see the discussion in cmdclass.py:get_cmdclass()
+        del sys.modules["versioneer"]
+
     root = get_root()
-    versionfile_abs = os.path.join(root, versionfile_source)
+    cfg = get_config_from_root(root)
+
+    assert cfg.VCS is not None, "please set [versioneer]VCS= in setup.cfg"
+    handlers = HANDLERS.get(cfg.VCS)
+    assert handlers, "unrecognized VCS '%s'" % cfg.VCS
+    verbose = verbose or bool(cfg.verbose)  # `bool()` used to avoid `None`
+    assert cfg.versionfile_source is not None, \
+        "please set versioneer.versionfile_source"
+    assert cfg.tag_prefix is not None, "please set versioneer.tag_prefix"
+
+    versionfile_abs = os.path.join(root, cfg.versionfile_source)
 
-    # extract version from first of _version.py, VCS command (e.g. 'git
+    # extract version from first of: _version.py, VCS command (e.g. 'git
     # describe'), parentdir. This is meant to work for developers using a
     # source checkout, for users of a tarball created by 'setup.py sdist',
     # and for users of a tarball/zipball created by 'git archive' or github's
     # download-from-tag feature or the equivalent in other VCSes.
 
-    get_keywords_f = vcs_function(VCS, "get_keywords")
-    versions_from_keywords_f = vcs_function(VCS, "versions_from_keywords")
-    if get_keywords_f and versions_from_keywords_f:
-        vcs_keywords = get_keywords_f(versionfile_abs)
-        ver = versions_from_keywords_f(vcs_keywords, tag_prefix)
-        if ver:
-            if verbose: print("got version from expanded keyword %s" % ver)
+    get_keywords_f = handlers.get("get_keywords")
+    from_keywords_f = handlers.get("keywords")
+    if get_keywords_f and from_keywords_f:
+        try:
+            keywords = get_keywords_f(versionfile_abs)
+            ver = from_keywords_f(keywords, cfg.tag_prefix, verbose)
+            if verbose:
+                print("got version from expanded keyword %s" % ver)
             return ver
+        except NotThisMethod:
+            pass
 
-    ver = versions_from_file(versionfile_abs)
-    if ver:
-        if verbose: print("got version from file %s %s" % (versionfile_abs,ver))
+    try:
+        ver = versions_from_file(versionfile_abs)
+        if verbose:
+            print("got version from file %s %s" % (versionfile_abs, ver))
         return ver
+    except NotThisMethod:
+        pass
 
-    versions_from_vcs_f = vcs_function(VCS, "versions_from_vcs")
-    if versions_from_vcs_f:
-        ver = versions_from_vcs_f(tag_prefix, root, verbose)
-        if ver:
-            if verbose: print("got version from VCS %s" % ver)
+    from_vcs_f = handlers.get("pieces_from_vcs")
+    if from_vcs_f:
+        try:
+            pieces = from_vcs_f(cfg.tag_prefix, root, verbose)
+            ver = render(pieces, cfg.style)
+            if verbose:
+                print("got version from VCS %s" % ver)
             return ver
+        except NotThisMethod:
+            pass
 
-    ver = versions_from_parentdir(parentdir_prefix, root, verbose)
-    if ver:
-        if verbose: print("got version from parentdir %s" % ver)
-        return ver
+    try:
+        if cfg.parentdir_prefix:
+            ver = versions_from_parentdir(cfg.parentdir_prefix, root, verbose)
+            if verbose:
+                print("got version from parentdir %s" % ver)
+            return ver
+    except NotThisMethod:
+        pass
 
-    if verbose: print("got version from default %s" % default)
-    return default
+    if verbose:
+        print("unable to compute version")
+
+    return {"version": "0+unknown", "full-revisionid": None,
+            "dirty": None, "error": "unable to compute version",
+            "date": None}
+
+
+def get_version() -> str:
+    """Get the short version string for this project."""
+    return get_versions()["version"]
+
+
+def get_cmdclass(cmdclass: Optional[Dict[str, Any]] = None):
+    """Get the custom setuptools subclasses used by Versioneer.
+
+    If the package uses a different cmdclass (e.g. one from numpy), it
+    should be provide as an argument.
+    """
+    if "versioneer" in sys.modules:
+        del sys.modules["versioneer"]
+        # this fixes the "python setup.py develop" case (also 'install' and
+        # 'easy_install .'), in which subdependencies of the main project are
+        # built (using setup.py bdist_egg) in the same python process. Assume
+        # a main project A and a dependency B, which use different versions
+        # of Versioneer. A's setup.py imports A's Versioneer, leaving it in
+        # sys.modules by the time B's setup.py is executed, causing B to run
+        # with the wrong versioneer. Setuptools wraps the sub-dep builds in a
+        # sandbox that restores sys.modules to it's pre-build state, so the
+        # parent is protected against the child's "import versioneer". By
+        # removing ourselves from sys.modules here, before the child build
+        # happens, we protect the child from the parent's versioneer too.
+        # Also see https://github.com/python-versioneer/python-versioneer/issues/52
+
+    cmds = {} if cmdclass is None else cmdclass.copy()
+
+    # we add "version" to setuptools
+    from setuptools import Command
+
+    class cmd_version(Command):
+        description = "report generated version string"
+        user_options: List[Tuple[str, str, str]] = []
+        boolean_options: List[str] = []
+
+        def initialize_options(self) -> None:
+            pass
 
-def get_version(verbose=False):
-    return get_versions(verbose=verbose)["version"]
+        def finalize_options(self) -> None:
+            pass
 
-class cmd_version(Command):
-    description = "report generated version string"
-    user_options = []
-    boolean_options = []
-    def initialize_options(self):
-        pass
-    def finalize_options(self):
-        pass
-    def run(self):
-        ver = get_version(verbose=True)
-        print("Version is currently: %s" % ver)
-
-
-class cmd_build(_build):
-    def run(self):
-        versions = get_versions(verbose=True)
-        _build.run(self)
-        # now locate _version.py in the new build/ directory and replace it
-        # with an updated value
-        target_versionfile = os.path.join(self.build_lib, versionfile_build)
-        print("UPDATING %s" % target_versionfile)
-        os.unlink(target_versionfile)
-        with open(target_versionfile, "w") as f:
-            f.write(SHORT_VERSION_PY % versions)
-
-if 'cx_Freeze' in sys.modules:  # cx_freeze enabled?
-    from cx_Freeze.dist import build_exe as _build_exe
-
-    class cmd_build_exe(_build_exe):
-        def run(self):
-            versions = get_versions(verbose=True)
-            target_versionfile = versionfile_source
+        def run(self) -> None:
+            vers = get_versions(verbose=True)
+            print("Version: %s" % vers["version"])
+            print(" full-revisionid: %s" % vers.get("full-revisionid"))
+            print(" dirty: %s" % vers.get("dirty"))
+            print(" date: %s" % vers.get("date"))
+            if vers["error"]:
+                print(" error: %s" % vers["error"])
+    cmds["version"] = cmd_version
+
+    # we override "build_py" in setuptools
+    #
+    # most invocation pathways end up running build_py:
+    #  distutils/build -> build_py
+    #  distutils/install -> distutils/build ->..
+    #  setuptools/bdist_wheel -> distutils/install ->..
+    #  setuptools/bdist_egg -> distutils/install_lib -> build_py
+    #  setuptools/install -> bdist_egg ->..
+    #  setuptools/develop -> ?
+    #  pip install:
+    #   copies source tree to a tempdir before running egg_info/etc
+    #   if .git isn't copied too, 'git describe' will fail
+    #   then does setup.py bdist_wheel, or sometimes setup.py install
+    #  setup.py egg_info -> ?
+
+    # pip install -e . and setuptool/editable_wheel will invoke build_py
+    # but the build_py command is not expected to copy any files.
+
+    # we override different "build_py" commands for both environments
+    if 'build_py' in cmds:
+        _build_py: Any = cmds['build_py']
+    else:
+        from setuptools.command.build_py import build_py as _build_py
+
+    class cmd_build_py(_build_py):
+        def run(self) -> None:
+            root = get_root()
+            cfg = get_config_from_root(root)
+            versions = get_versions()
+            _build_py.run(self)
+            if getattr(self, "editable_mode", False):
+                # During editable installs `.py` and data files are
+                # not copied to build_lib
+                return
+            # now locate _version.py in the new build/ directory and replace
+            # it with an updated value
+            if cfg.versionfile_build:
+                target_versionfile = os.path.join(self.build_lib,
+                                                  cfg.versionfile_build)
+                print("UPDATING %s" % target_versionfile)
+                write_to_version_file(target_versionfile, versions)
+    cmds["build_py"] = cmd_build_py
+
+    if 'build_ext' in cmds:
+        _build_ext: Any = cmds['build_ext']
+    else:
+        from setuptools.command.build_ext import build_ext as _build_ext
+
+    class cmd_build_ext(_build_ext):
+        def run(self) -> None:
+            root = get_root()
+            cfg = get_config_from_root(root)
+            versions = get_versions()
+            _build_ext.run(self)
+            if self.inplace:
+                # build_ext --inplace will only build extensions in
+                # build/lib<..> dir with no _version.py to write to.
+                # As in place builds will already have a _version.py
+                # in the module dir, we do not need to write one.
+                return
+            # now locate _version.py in the new build/ directory and replace
+            # it with an updated value
+            if not cfg.versionfile_build:
+                return
+            target_versionfile = os.path.join(self.build_lib,
+                                              cfg.versionfile_build)
+            if not os.path.exists(target_versionfile):
+                print(f"Warning: {target_versionfile} does not exist, skipping "
+                      "version update. This can happen if you are running build_ext "
+                      "without first running build_py.")
+                return
             print("UPDATING %s" % target_versionfile)
-            os.unlink(target_versionfile)
-            with open(target_versionfile, "w") as f:
-                f.write(SHORT_VERSION_PY % versions)
-
-            _build_exe.run(self)
-            os.unlink(target_versionfile)
-            with open(versionfile_source, "w") as f:
-                assert VCS is not None, "please set versioneer.VCS"
-                LONG = LONG_VERSION_PY[VCS]
-                f.write(LONG % {"DOLLAR": "$",
-                                "TAG_PREFIX": tag_prefix,
-                                "PARENTDIR_PREFIX": parentdir_prefix,
-                                "VERSIONFILE_SOURCE": versionfile_source,
-                                })
-
-class cmd_sdist(_sdist):
-    def run(self):
-        versions = get_versions(verbose=True)
-        self._versioneer_generated_versions = versions
-        # unless we update this, the command will keep using the old version
-        self.distribution.metadata.version = versions["version"]
-        return _sdist.run(self)
-
-    def make_release_tree(self, base_dir, files):
-        _sdist.make_release_tree(self, base_dir, files)
-        # now locate _version.py in the new base_dir directory (remembering
-        # that it may be a hardlink) and replace it with an updated value
-        target_versionfile = os.path.join(base_dir, versionfile_source)
-        print("UPDATING %s" % target_versionfile)
-        os.unlink(target_versionfile)
-        with open(target_versionfile, "w") as f:
-            f.write(SHORT_VERSION_PY % self._versioneer_generated_versions)
+            write_to_version_file(target_versionfile, versions)
+    cmds["build_ext"] = cmd_build_ext
+
+    if "cx_Freeze" in sys.modules:  # cx_freeze enabled?
+        from cx_Freeze.dist import build_exe as _build_exe  # type: ignore
+        # nczeczulin reports that py2exe won't like the pep440-style string
+        # as FILEVERSION, but it can be used for PRODUCTVERSION, e.g.
+        # setup(console=[{
+        #   "version": versioneer.get_version().split("+", 1)[0], # FILEVERSION
+        #   "product_version": versioneer.get_version(),
+        #   ...
+
+        class cmd_build_exe(_build_exe):
+            def run(self) -> None:
+                root = get_root()
+                cfg = get_config_from_root(root)
+                versions = get_versions()
+                target_versionfile = cfg.versionfile_source
+                print("UPDATING %s" % target_versionfile)
+                write_to_version_file(target_versionfile, versions)
+
+                _build_exe.run(self)
+                os.unlink(target_versionfile)
+                with open(cfg.versionfile_source, "w") as f:
+                    LONG = LONG_VERSION_PY[cfg.VCS]
+                    f.write(LONG %
+                            {"DOLLAR": "$",
+                             "STYLE": cfg.style,
+                             "TAG_PREFIX": cfg.tag_prefix,
+                             "PARENTDIR_PREFIX": cfg.parentdir_prefix,
+                             "VERSIONFILE_SOURCE": cfg.versionfile_source,
+                             })
+        cmds["build_exe"] = cmd_build_exe
+        del cmds["build_py"]
+
+    if 'py2exe' in sys.modules:  # py2exe enabled?
+        try:
+            from py2exe.setuptools_buildexe import py2exe as _py2exe  # type: ignore
+        except ImportError:
+            from py2exe.distutils_buildexe import py2exe as _py2exe  # type: ignore
+
+        class cmd_py2exe(_py2exe):
+            def run(self) -> None:
+                root = get_root()
+                cfg = get_config_from_root(root)
+                versions = get_versions()
+                target_versionfile = cfg.versionfile_source
+                print("UPDATING %s" % target_versionfile)
+                write_to_version_file(target_versionfile, versions)
+
+                _py2exe.run(self)
+                os.unlink(target_versionfile)
+                with open(cfg.versionfile_source, "w") as f:
+                    LONG = LONG_VERSION_PY[cfg.VCS]
+                    f.write(LONG %
+                            {"DOLLAR": "$",
+                             "STYLE": cfg.style,
+                             "TAG_PREFIX": cfg.tag_prefix,
+                             "PARENTDIR_PREFIX": cfg.parentdir_prefix,
+                             "VERSIONFILE_SOURCE": cfg.versionfile_source,
+                             })
+        cmds["py2exe"] = cmd_py2exe
+
+    # sdist farms its file list building out to egg_info
+    if 'egg_info' in cmds:
+        _egg_info: Any = cmds['egg_info']
+    else:
+        from setuptools.command.egg_info import egg_info as _egg_info
+
+    class cmd_egg_info(_egg_info):
+        def find_sources(self) -> None:
+            # egg_info.find_sources builds the manifest list and writes it
+            # in one shot
+            super().find_sources()
+
+            # Modify the filelist and normalize it
+            root = get_root()
+            cfg = get_config_from_root(root)
+            self.filelist.append('versioneer.py')
+            if cfg.versionfile_source:
+                # There are rare cases where versionfile_source might not be
+                # included by default, so we must be explicit
+                self.filelist.append(cfg.versionfile_source)
+            self.filelist.sort()
+            self.filelist.remove_duplicates()
+
+            # The write method is hidden in the manifest_maker instance that
+            # generated the filelist and was thrown away
+            # We will instead replicate their final normalization (to unicode,
+            # and POSIX-style paths)
+            from setuptools import unicode_utils
+            normalized = [unicode_utils.filesys_decode(f).replace(os.sep, '/')
+                          for f in self.filelist.files]
+
+            manifest_filename = os.path.join(self.egg_info, 'SOURCES.txt')
+            with open(manifest_filename, 'w') as fobj:
+                fobj.write('\n'.join(normalized))
+
+    cmds['egg_info'] = cmd_egg_info
+
+    # we override different "sdist" commands for both environments
+    if 'sdist' in cmds:
+        _sdist: Any = cmds['sdist']
+    else:
+        from setuptools.command.sdist import sdist as _sdist
+
+    class cmd_sdist(_sdist):
+        def run(self) -> None:
+            versions = get_versions()
+            self._versioneer_generated_versions = versions
+            # unless we update this, the command will keep using the old
+            # version
+            self.distribution.metadata.version = versions["version"]
+            return _sdist.run(self)
+
+        def make_release_tree(self, base_dir: str, files: List[str]) -> None:
+            root = get_root()
+            cfg = get_config_from_root(root)
+            _sdist.make_release_tree(self, base_dir, files)
+            # now locate _version.py in the new base_dir directory
+            # (remembering that it may be a hardlink) and replace it with an
+            # updated value
+            target_versionfile = os.path.join(base_dir, cfg.versionfile_source)
+            print("UPDATING %s" % target_versionfile)
+            write_to_version_file(target_versionfile,
+                                  self._versioneer_generated_versions)
+    cmds["sdist"] = cmd_sdist
 
-INIT_PY_SNIPPET = """
+    return cmds
+
+
+CONFIG_ERROR = """
+setup.cfg is missing the necessary Versioneer configuration. You need
+a section like:
+
+ [versioneer]
+ VCS = git
+ style = pep440
+ versionfile_source = src/myproject/_version.py
+ versionfile_build = myproject/_version.py
+ tag_prefix =
+ parentdir_prefix = myproject-
+
+You will also need to edit your setup.py to use the results:
+
+ import versioneer
+ setup(version=versioneer.get_version(),
+       cmdclass=versioneer.get_cmdclass(), ...)
+
+Please read the docstring in ./versioneer.py for configuration instructions,
+edit setup.cfg, and re-run the installer or 'python versioneer.py setup'.
+"""
+
+SAMPLE_CONFIG = """
+# See the docstring in versioneer.py for instructions. Note that you must
+# re-run 'versioneer.py setup' after changing this section, and commit the
+# resulting files.
+
+[versioneer]
+#VCS = git
+#style = pep440
+#versionfile_source =
+#versionfile_build =
+#tag_prefix =
+#parentdir_prefix =
+
+"""
+
+OLD_SNIPPET = """
 from ._version import get_versions
 __version__ = get_versions()['version']
 del get_versions
 """
 
-class cmd_update_files(Command):
-    description = "install/upgrade Versioneer files: __init__.py SRC/_version.py"
-    user_options = []
-    boolean_options = []
-    def initialize_options(self):
-        pass
-    def finalize_options(self):
-        pass
-    def run(self):
-        print(" creating %s" % versionfile_source)
-        with open(versionfile_source, "w") as f:
-            assert VCS is not None, "please set versioneer.VCS"
-            LONG = LONG_VERSION_PY[VCS]
-            f.write(LONG % {"DOLLAR": "$",
-                            "TAG_PREFIX": tag_prefix,
-                            "PARENTDIR_PREFIX": parentdir_prefix,
-                            "VERSIONFILE_SOURCE": versionfile_source,
-                            })
-
-        ipy = os.path.join(os.path.dirname(versionfile_source), "__init__.py")
+INIT_PY_SNIPPET = """
+from . import {0}
+__version__ = {0}.get_versions()['version']
+"""
+
+
+def do_setup() -> int:
+    """Do main VCS-independent setup function for installing Versioneer."""
+    root = get_root()
+    try:
+        cfg = get_config_from_root(root)
+    except (OSError, configparser.NoSectionError,
+            configparser.NoOptionError) as e:
+        if isinstance(e, (OSError, configparser.NoSectionError)):
+            print("Adding sample versioneer config to setup.cfg",
+                  file=sys.stderr)
+            with open(os.path.join(root, "setup.cfg"), "a") as f:
+                f.write(SAMPLE_CONFIG)
+        print(CONFIG_ERROR, file=sys.stderr)
+        return 1
+
+    print(" creating %s" % cfg.versionfile_source)
+    with open(cfg.versionfile_source, "w") as f:
+        LONG = LONG_VERSION_PY[cfg.VCS]
+        f.write(LONG % {"DOLLAR": "$",
+                        "STYLE": cfg.style,
+                        "TAG_PREFIX": cfg.tag_prefix,
+                        "PARENTDIR_PREFIX": cfg.parentdir_prefix,
+                        "VERSIONFILE_SOURCE": cfg.versionfile_source,
+                        })
+
+    ipy = os.path.join(os.path.dirname(cfg.versionfile_source),
+                       "__init__.py")
+    maybe_ipy: Optional[str] = ipy
+    if os.path.exists(ipy):
         try:
             with open(ipy, "r") as f:
                 old = f.read()
-        except EnvironmentError:
+        except OSError:
             old = ""
-        if INIT_PY_SNIPPET not in old:
+        module = os.path.splitext(os.path.basename(cfg.versionfile_source))[0]
+        snippet = INIT_PY_SNIPPET.format(module)
+        if OLD_SNIPPET in old:
+            print(" replacing boilerplate in %s" % ipy)
+            with open(ipy, "w") as f:
+                f.write(old.replace(OLD_SNIPPET, snippet))
+        elif snippet not in old:
             print(" appending to %s" % ipy)
             with open(ipy, "a") as f:
-                f.write(INIT_PY_SNIPPET)
+                f.write(snippet)
         else:
             print(" %s unmodified" % ipy)
-
-        # Make sure both the top-level "versioneer.py" and versionfile_source
-        # (PKG/_version.py, used by runtime code) are in MANIFEST.in, so
-        # they'll be copied into source distributions. Pip won't be able to
-        # install the package without this.
-        manifest_in = os.path.join(get_root(), "MANIFEST.in")
-        simple_includes = set()
-        try:
-            with open(manifest_in, "r") as f:
-                for line in f:
-                    if line.startswith("include "):
-                        for include in line.split()[1:]:
-                            simple_includes.add(include)
-        except EnvironmentError:
-            pass
-        # That doesn't cover everything MANIFEST.in can do
-        # (http://docs.python.org/2/distutils/sourcedist.html#commands), so
-        # it might give some false negatives. Appending redundant 'include'
-        # lines is safe, though.
-        if "versioneer.py" not in simple_includes:
-            print(" appending 'versioneer.py' to MANIFEST.in")
-            with open(manifest_in, "a") as f:
-                f.write("include versioneer.py\n")
-        else:
-            print(" 'versioneer.py' already in MANIFEST.in")
-        if versionfile_source not in simple_includes:
-            print(" appending versionfile_source ('%s') to MANIFEST.in" %
-                  versionfile_source)
-            with open(manifest_in, "a") as f:
-                f.write("include %s\n" % versionfile_source)
-        else:
-            print(" versionfile_source already in MANIFEST.in")
-
-        # Make VCS-specific changes. For git, this means creating/changing
-        # .gitattributes to mark _version.py for export-time keyword
-        # substitution.
-        do_vcs_install(manifest_in, versionfile_source, ipy)
-
-def get_cmdclass():
-    cmds = {'version': cmd_version,
-            'versioneer': cmd_update_files,
-            'build': cmd_build,
-            'sdist': cmd_sdist,
-            }
-    if 'cx_Freeze' in sys.modules:  # cx_freeze enabled?
-        cmds['build_exe'] = cmd_build_exe
-        del cmds['build']
-
-    return cmds
+    else:
+        print(" %s doesn't exist, ok" % ipy)
+        maybe_ipy = None
+
+    # Make VCS-specific changes. For git, this means creating/changing
+    # .gitattributes to mark _version.py for export-subst keyword
+    # substitution.
+    do_vcs_install(cfg.versionfile_source, maybe_ipy)
+    return 0
+
+
+def scan_setup_py() -> int:
+    """Validate the contents of setup.py against Versioneer's expectations."""
+    found = set()
+    setters = False
+    errors = 0
+    with open("setup.py", "r") as f:
+        for line in f.readlines():
+            if "import versioneer" in line:
+                found.add("import")
+            if "versioneer.get_cmdclass()" in line:
+                found.add("cmdclass")
+            if "versioneer.get_version()" in line:
+                found.add("get_version")
+            if "versioneer.VCS" in line:
+                setters = True
+            if "versioneer.versionfile_source" in line:
+                setters = True
+    if len(found) != 3:
+        print("")
+        print("Your setup.py appears to be missing some important items")
+        print("(but I might be wrong). Please make sure it has something")
+        print("roughly like the following:")
+        print("")
+        print(" import versioneer")
+        print(" setup( version=versioneer.get_version(),")
+        print("        cmdclass=versioneer.get_cmdclass(),  ...)")
+        print("")
+        errors += 1
+    if setters:
+        print("You should remove lines like 'versioneer.VCS = ' and")
+        print("'versioneer.versionfile_source = ' . This configuration")
+        print("now lives in setup.cfg, and should be removed from setup.py")
+        print("")
+        errors += 1
+    return errors
+
+
+def setup_command() -> NoReturn:
+    """Set up Versioneer and exit with appropriate error code."""
+    errors = do_setup()
+    errors += scan_setup_py()
+    sys.exit(1 if errors else 0)
+
+
+if __name__ == "__main__":
+    cmd = sys.argv[1]
+    if cmd == "setup":
+        setup_command()


Test patch:
diff --git a/tests/create_cfg.sh b/tests/create_cfg.sh
index 3d6e247..8db0276 100644
--- a/tests/create_cfg.sh
+++ b/tests/create_cfg.sh
@@ -2,18 +2,8 @@
 
 CFG_FILE=$HOME/.CreateCloudMap/CreateCloudMap.ini
 
-echo "[Download]" > $CFG_FILE
-echo "username = ${DUNDEE_USERNAME}" >> $CFG_FILE
-echo "password = ${DUNDEE_PASSWORD}" >> $CFG_FILE
-echo "tempdir = ${DUNDEE_TEMPDIR}" >> $CFG_FILE
-echo "resolution = ${DUNDEE_RESOLUTION}" >> $CFG_FILE
-
 echo "[xplanet]" >> $CFG_FILE
 echo "destinationdir = xplanet/images" >> $CFG_FILE
 
 echo "width = 4096" >> $CFG_FILE
 echo "height = 2048" >> $CFG_FILE
-
-echo "[processing]" >> $CFG_FILE
-echo "nprocs = ${DUNDEE_NPROCS}" >> $CFG_FILE
-echo "projection = ${DUNDEE_PROJECTION}" >> $CFG_FILE
\ No newline at end of file