Package: pythran
https://pythran.readthedocs.ioWhat is it?Pythran is an ahead of time compiler for a subset of the Python language, with a
focus on scientific computing. It takes a Python module annotated with a few
interface descriptions and turns it into a native Python module with the same
interface, but (hopefully) faster.It is meant to efficiently compilescientific programs, and takes advantage
of multi-cores and SIMD instruction units.Until 0.9.5 (included), Pythran was supporting Python 3 and Python 2.7.
It now only supports Python3.InstallationPythran sources are hosted onhttps://github.com/serge-sans-paille/pythran.Pythran releases are hosted onhttps://pypi.python.org/pypi/pythran.Pythran is available on conda-forge onhttps://anaconda.org/conda-forge/pythran.Debian/UbuntuUsingpipGather dependencies:Pythran depends on a few Python modules and several C++ libraries. On a debian-like platform, run:$> sudo apt-get install libatlas-base-dev
$> sudo apt-get install python-dev python-ply python-numpyInstall withpip:$> pip install pythranUsingmambaorcondaUsingmamba(https://github.com/conda-forge/miniforge#mambaforge) orconda(https://github.com/conda-forge/miniforge)Run:$> mamba install -c conda-forge pythranor:$> conda install -c conda-forge pythranMac OSXUsing brew (https://brew.sh/):$> pip install pythran
$> brew install openblas
$> printf '[compiler]\nblas=openblas\ninclude_dirs=/usr/local/opt/openblas/include\nlibrary_dirs=/usr/local/opt/openblas/lib' > ~/.pythranrcDepending on your setup, you may need to add the following to your~/.pythranrcfile:[compiler]
CXX=g++-4.9
CC=gcc-4.9ArchLinuxUsingpacman:$> pacman -S python-pythranFedoraUsingdnf:$> dnf install pythranWindowsWindows support is on going and only targets Python 3.5+ with either Visual Studio 2017 or, better, clang-cl:$> pip install pythranNote that usingclang-cl.exeis the default setting. It can be changed
through theCXXandCCenvironment variables.Other PlatformSee MANUAL file.Basic UsageA simple pythran input could bedprod.py"""
Naive dotproduct! Pythran supports numpy.dot
"""#pythran export dprod(int list, int list)defdprod(l0,l1):"""WoW, generator expression, zip and sum."""returnsum(x*yforx,yinzip(l0,l1))To turn it into a native module, run:$> pythran dprod.pyThat will generate a native dprod.so that can be imported just like the former
module:$> python -c 'import dprod' # this imports the native module insteadDocumentationThe user documentation is available in the MANUAL file from the doc directory.The developer documentation is available in the DEVGUIDE file from the doc
directory. There is also a TUTORIAL file for those who don’t like reading
documentation.The CLI documentation is available from the pythran help command:$> pythran --helpSome extra developer documentation is also available using pydoc. Beware, this
is the computer science incarnation for the famous Where’s Waldo? game:$> pydoc pythran
$> pydoc pythran.typing
$> pydoc -b  # in the browserExamplesSee thepythran/tests/cases/directory from the sources.ContactPraise, flame and cookies:pythran@freelists.org– register athttps://www.freelists.org/list/pythranfirst!#pythran on OFTC,https://oftc.netserge.guelton@telecom-bretagne.euThe mailing list archive is available athttps://www.freelists.org/archive/pythran/.CitingIf you need to cite a Pythran paper, feel free to use@article{guelton2015pythran,title={Pythran: Enabling static optimization of scientific python programs},author={Guelton, Serge and Brunet, Pierrick and Amini, Mehdi and Merlini,
                  Adrien and Corbillon, Xavier and Raynaud, Alan},journal={Computational Science \& Discovery},volume={8},number={1},pages={014001},year={2015},publisher={IOP Publishing}}AuthorsSee AUTHORS file.LicenseSee LICENSE file.