Issue 1:
Bug summary

When using Pyinstaller in version 3.3.1, I get an error message that "defaultParams" is not defined.

The dictionary is located in __ init __.py @ line # 563 (Version 3.3.1).

In Version 3.2.2, "defaultParams" was imported from rcsetup at beginning of file, but in version 3.3.1 it is not present

Version 3.2.2 ==> from matplotlib.rcsetup import defaultParams, validate_backend, cycler

Version 3.3.1 ==> from matplotlib.rcsetup import validate_backend, cycler

The only other location where "defaultParams" can be brought into __ init __.py is @ line # 916, but maybe it is too far down for program to see.

I tried adding the import back, but does not work :)

Code for reproduction

No code, just regular freezing in Pyinstaller

Actual outcome

File "<frozen importlib._bootstrap>", line 983, in _find_and_load
File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
File "c:\python37-32\lib\site-packages\PyInstaller\loader\pyimod03_importers.py", line 493, in exec_module
exec(bytecode, module.__dict__)
File "matplotlib\__init__.py", line 905, in <module>
File "matplotlib\cbook\__init__.py", line 480, in _get_data_path
File "matplotlib\__init__.py", line 239, in wrapper
File "matplotlib\__init__.py", line 534, in get_data_path
File "matplotlib\__init__.py", line 239, in wrapper
File "matplotlib\__init__.py", line 563, in _get_data_path
NameError: name 'defaultParams' is not defined

Operating system: Win 10

Matplotlib version: 3.3.1

Matplotlib backend (print(matplotlib.get_backend())): matplotlib.backends.backend_qt5agg

Python version: 3.7.7

Other libraries: PyQt5: 5.15.0

Issue 2:
Bug report

Bug summary

I try to plot some dataframe with matplotlib in a GUI designed by pyqt5. I use pyinstaller for packaging as following:

pyinstaller main.py

and its outcome:

33 INFO: PyInstaller: 3.4

34 INFO: Python: 3.6.9

34 INFO: Platform: Linux-5.4.0-42-generic-x86_64-with-Ubuntu-18.04-bionic

35 INFO: wrote /home/shahriar/python_projects/first_test/src/main/python/main.spec

36 INFO: UPX is not available.

37 INFO: Extending PYTHONPATH with paths

['/home/shahriar/python_projects/first_test/src/main/python',

'/home/shahriar/python_projects/first_test/src/main/python']

38 INFO: checking Analysis

58 INFO: Building because /home/shahriar/python_projects/first_test/src/main/python/main.py changed

59 INFO: Initializing module dependency graph...

60 INFO: Initializing module graph hooks...

61 INFO: Analyzing base_library.zip ...

2440 INFO: running Analysis Analysis-00.toc

2485 INFO: Caching module hooks...

2490 INFO: Analyzing /home/shahriar/python_projects/first_test/src/main/python/main.py

3151 INFO: Processing pre-find module path hook distutils

3996 INFO: Processing pre-safe import module hook setuptools.extern.six.moves

4263 INFO: Processing pre-find module path hook site

4263 INFO: site: retargeting to fake-dir '/home/shahriar/first_test/lib/python3.6/site-packages/PyInstaller/fake-modules'

8256 INFO: Processing pre-safe import module hook six.moves

22239 INFO: Loading module hooks...

22239 INFO: Loading module hook "hook-sqlite3.py"...

22285 INFO: Loading module hook "hook-scipy.py"...

22286 INFO: Loading module hook "hook-distutils.py"...

22286 INFO: Loading module hook "hook-scipy.sparse.csgraph.py"...

22289 INFO: Loading module hook "hook-scipy.linalg.py"...

22290 INFO: Loading module hook "hook-PyQt5.QtGui.py"...

22385 INFO: Loading module hook "hook-PyQt5.py"...

22400 INFO: Loading module hook "hook-numpy.core.py"...

22529 INFO: Loading module hook "hook-PyQt5.QtCore.py"...

22555 INFO: Loading module hook "hook-encodings.py"...

22607 INFO: Loading module hook "hook-matplotlib.py"...

22878 INFO: Loading module hook "hook-PIL.Image.py"...

23238 INFO: Loading module hook "hook-pycparser.py"...

23239 INFO: Loading module hook "hook-lib2to3.py"...

23240 INFO: Loading module hook "hook-sysconfig.py"...

23245 INFO: Loading module hook "hook-numpy.py"...

23246 INFO: Loading module hook "hook-xml.etree.cElementTree.py"...

23246 INFO: Loading module hook "hook-pkg_resources.py"...

23589 INFO: Processing pre-safe import module hook win32com

23631 INFO: Loading module hook "hook-PyQt5.QtWidgets.py"...

23702 INFO: Loading module hook "hook-pytz.py"...

23722 INFO: Loading module hook "hook-scipy.special._ufuncs.py"...

23722 INFO: Loading module hook "hook-pydoc.py"...

23723 INFO: Loading module hook "hook-_tkinter.py"...

23804 INFO: checking Tree

23808 INFO: checking Tree

23809 INFO: Loading module hook "hook-setuptools.py"...

/home/shahriar/first_test/lib/python3.6/site-packages/setuptools/distutils_patch.py:26: UserWarning: Distutils was imported before Setuptools. This usage is discouraged and may exhibit undesirable behaviors or errors. Please use Setuptools' objects directly or at least import Setuptools first.

"Distutils was imported before Setuptools. This usage is discouraged "

24243 INFO: Loading module hook "hook-scipy.special._ellip_harm_2.py"...

24244 INFO: Loading module hook "hook-matplotlib.backends.py"...

24998 INFO: Matplotlib backend "GTK3Agg": ignored

The GTK3 backends require PyGObject

25466 INFO: Matplotlib backend "GTK3Cairo": ignored

The GTK3 backends require PyGObject

25726 INFO: Matplotlib backend "MacOSX": ignored

cannot import name '_macosx'

25991 INFO: Matplotlib backend "nbAgg": ignored

No module named 'IPython'

-c:12: MatplotlibDeprecationWarning:

The matplotlib.backends.backend_qt4agg backend was deprecated in Matplotlib 3.3 and will be removed two minor releases later.

26478 INFO: Matplotlib backend "Qt4Agg": added

-c:12: MatplotlibDeprecationWarning:

The matplotlib.backends.backend_qt4cairo backend was deprecated in Matplotlib 3.3 and will be removed two minor releases later.

27028 INFO: Matplotlib backend "Qt4Cairo": added

27514 INFO: Matplotlib backend "Qt5Agg": added

28063 INFO: Matplotlib backend "Qt5Cairo": added

28495 INFO: Matplotlib backend "TkAgg": added

28964 INFO: Matplotlib backend "TkCairo": added

29231 INFO: Matplotlib backend "WebAgg": ignored

Traceback (most recent call last):

File "/home/shahriar/first_test/lib/python3.6/site-packages/matplotlib/backends/backend_webagg.py", line 27, in

import tornado

ModuleNotFoundError: No module named 'tornado'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):

File "", line 12, in

File "/home/shahriar/first_test/lib/python3.6/site-packages/matplotlib/backends/backend_webagg.py", line 29, in

raise RuntimeError("The WebAgg backend requires Tornado.") from err

RuntimeError: The WebAgg backend requires Tornado.

29649 INFO: Matplotlib backend "WX": ignored

No module named 'wx'

29910 INFO: Matplotlib backend "WXAgg": ignored

No module named 'wx'

30179 INFO: Matplotlib backend "WXCairo": ignored

No module named 'wx'

30505 INFO: Matplotlib backend "agg": added

30868 INFO: Matplotlib backend "cairo": added

31301 INFO: Matplotlib backend "pdf": added

31727 INFO: Matplotlib backend "pgf": added

32083 INFO: Matplotlib backend "ps": added

32430 INFO: Matplotlib backend "svg": added

32847 INFO: Matplotlib backend "template": added

33202 INFO: Loading module hook "hook-PIL.py"...

33205 INFO: Excluding import 'PyQt4'

33207 INFO: Excluding import 'tkinter'

33210 INFO: Removing import of tkinter from module PIL.ImageTk

33211 INFO: Excluding import 'PySide'

33214 INFO: Import to be excluded not found: 'FixTk'

33215 INFO: Excluding import 'PyQt5'

33217 INFO: Removing import of PyQt5.QtCore from module PIL.ImageQt

33217 INFO: Removing import of PyQt5.QtGui from module PIL.ImageQt

33217 INFO: Loading module hook "hook-xml.py"...

33261 INFO: Loading module hook "hook-PIL.SpiderImagePlugin.py"...

33263 INFO: Import to be excluded not found: 'FixTk'

33263 INFO: Excluding import 'tkinter'

33264 INFO: Loading module hook "hook-pandas.py"...

33994 INFO: Looking for ctypes DLLs

34103 WARNING: library user32 required via ctypes not found

34214 WARNING: library msvcrt required via ctypes not found

34235 INFO: Analyzing run-time hooks ...

34249 INFO: Including run-time hook 'pyi_rth_pkgres.py'

34250 INFO: Including run-time hook 'pyi_rth_multiprocessing.py'

34253 INFO: Including run-time hook 'pyi_rth__tkinter.py'

34254 INFO: Including run-time hook 'pyi_rth_mplconfig.py'

34255 INFO: Including run-time hook 'pyi_rth_mpldata.py'

34256 INFO: Including run-time hook 'pyi_rth_qt5.py'

34284 INFO: Looking for dynamic libraries

37779 INFO: Looking for eggs

37780 INFO: Python library not in binary dependencies. Doing additional searching...

37800 INFO: Using Python library /usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0

37826 INFO: Warnings written to /home/shahriar/python_projects/first_test/src/main/python/build/main/warn-main.txt

37958 INFO: Graph cross-reference written to /home/shahriar/python_projects/first_test/src/main/python/build/main/xref-main.html

38033 INFO: checking PYZ

38046 INFO: Building because toc changed

38047 INFO: Building PYZ (ZlibArchive) /home/shahriar/python_projects/first_test/src/main/python/build/main/PYZ-00.pyz

40255 INFO: Building PYZ (ZlibArchive) /home/shahriar/python_projects/first_test/src/main/python/build/main/PYZ-00.pyz completed successfully.

40295 INFO: checking PKG

40296 INFO: Building because toc changed

40296 INFO: Building PKG (CArchive) PKG-00.pkg

40460 INFO: Building PKG (CArchive) PKG-00.pkg completed successfully.

40462 INFO: Bootloader /home/shahriar/first_test/lib/python3.6/site-packages/PyInstaller/bootloader/Linux-64bit/run

40462 INFO: checking EXE

40464 INFO: Building because toc changed

40464 INFO: Building EXE from EXE-00.toc

40466 INFO: Appending archive to ELF section in EXE /home/shahriar/python_projects/first_test/src/main/python/build/main/main

40659 INFO: Building EXE from EXE-00.toc completed successfully.

40665 INFO: checking COLLECT

WARNING: The output directory "/home/shahriar/python_projects/first_test/src/main/python/dist/main" and ALL ITS CONTENTS will be REMOVED! Continue? (y/n)y

110470 INFO: Removing dir /home/shahriar/python_projects/first_test/src/main/python/dist/main

110556 INFO: Building COLLECT COLLECT-00.toc

111044 INFO: Building COLLECT COLLECT-00.toc completed successfully.

Actual outcome

when I run the executable file as ./dist/main, I get this error:

/home/shahriar/first_test/lib/python3.6/site-packages/PyInstaller/loader/pyimod03_importers.py:627: MatplotlibDeprecationWarning: Matplotlib installs where the data is not in the mpl-data subdirectory of the package are deprecated since 3.2 and support for them will be removed two minor releases later.

exec(bytecode, module.dict)

Traceback (most recent call last):

File "main.py", line 20, in

from matplotlib import ticker

File "", line 971, in _find_and_load

File "", line 955, in _find_and_load_unlocked

File "", line 665, in _load_unlocked

File "/home/shahriar/first_test/lib/python3.6/site-packages/PyInstaller/loader/pyimod03_importers.py", line 627, in exec_module

exec(bytecode, module.dict)

File "matplotlib/init.py", line 898, in

File "matplotlib/cbook/init.py", line 480, in _get_data_path

File "matplotlib/init.py", line 239, in wrapper

File "matplotlib/init.py", line 534, in get_data_path

File "matplotlib/init.py", line 239, in wrapper

File "matplotlib/init.py", line 563, in _get_data_path

NameError: name 'defaultParams' is not defined

[24669] Failed to execute script main

# If applicable, paste the console output here
#
#

Expected outcome

an executable file of my project

Matplotlib version

Operating system: ubuntu 18.04

Matplotlib version: 3.3.0

Matplotlib backend (print(matplotlib.get_backend())):Backend Qt5Agg is interactive backend. Turning interactive mode on. Qt5Agg

Python version:3.6.9

Jupyter version (if applicable):

Other libraries: pyqt5, pyinstaller, pandas