Shed Skin is a restricted-Python-to-C++ compiler.
Project description
Shed Skin
Shed Skin is an experimental compiler, that can translate pure, but implicitly statically typed Python (3.8+) programs into optimized C++. It can generate stand-alone programs or extension modules that can be imported and used in larger Python programs.
Besides the typing restriction, programs cannot freely use the Python standard library (although about 25 common modules, such as random and re, are currently supported). Also, not all Python features, such as nested functions and variable numbers of arguments, are supported (see the documentation for details).
For a set of 75 non-trivial programs (at over 25,000 lines in total (sloccount)), measurements show a typical speedup of 2-200 times over CPython.
Usage
- ::
shedskin test.py make ./test
Restrictions
Shed Skin only supports a restricted subset of Python, so one should not expect a given program to compile without any changes, if possible at all. See the documentation for an overview of the limitations.
Installation
Shed Skin depends on some others projects, such as the Boehm garbage collector. Please see the documentation on how to install these.
Comparison
Some timings for the shedskin ‘sieve’ example (n=100000000) and several Python implementations/optimizers:
cpython 3.10.6: 13.4 seconds cpython 3.11.0: 11.4 nuitka 0.6.16: 11.4 pypy 3.9.12: 5.8 shedskin 0.9.6: 1.9
Screenhots
Some screenshots of the example programs in action:
Contributors
The following people have contributed to Shed Skin development:
Shakeeb Alireza Hakan Ardo Brian Blais Paul Boddie François Boutines Djamel Cherif James Coughlan Mark Dewing Mark Dufour Artem Egorkine Michael Elkins Moataz Elmasry Enzo Erbano Ernesto Ferro Salvatore Ferro FFAO Victor Garcia Luis M. Gonzales Fahrzin Hemmati Folkert van Heusden Karel Heyse Johan Kristensen Kousuke Denis de Leeuw Duarte Van Lindberg David Marek Douglas McNeil Andy Miller Jeff Miller Danny Milosavljevic Joaquin Abian Monux John Nagle Harri Pasanen Brent Pedersen Joris van Rantwijk Retsyo Pierre-Marie de Rodat Jérémie Roquet Mike Schrick SirNotAppearingInThisTutorial Paul Sokolevsky Thomas Spura Joerg Stippa Dan Stromberg Dave Tweed Jaroslaw Tworek Tony Veijalainen Pavel Vinogradov Jason Ye Liu Zhenhai Joris van Zwieten
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