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Project Description

Shed Skin is an experimental (restricted-)Python-to-C++ compiler. It accepts pure but implicitly statically typed Python programs and generates optimized C++ code. The result can be further compiled to stand-alone programs or extension modules. For a set of 63 non-trivial test programs, at more than 16,000 lines in total (sloccount), measurements show a typical speedup of 2-200 times over CPython. Not all Python features are supported, and only a subset of about 25 library modules, such as re and random.
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2012-01-17 05:40

Several bugs were fixed. itertools.product was greatly optimized. str.join and str.__ne__ were optimized. A new 'image scaling' example was added (hq2x). The optional enumerate 'start' argument is now supported. Extension module warnings were improved. A new option -L was added, to add a library directory. FLAGS can now reside in /etc/shedskin, and lib/ in /usr/share/shedskin.

2011-09-12 01:54

Scalability was again greatly improved. Performance of file I/O and complex numbers was greatly improved. Three new modules are supported. Six new example programs were added. There were many other bugfixes and improvements.

2011-06-22 01:27

Support was added for the "struct" and "array" modules. Three new examples were added, for a total of 57. The C64 example was updated, and is now more than 3,000 lines (sloccount). An option was added to display exception tracebacks (shedskin -x). Many bugs were fixed.

2011-03-27 05:25

Extension module support was improved. Several builtins were optimized: zip, min, max, map, filter, reduce, and pow. A warning was added for non-uniform tuples of length greater than 2. Internals for looping and sequences were cleaned up. Two new examples were added: a quantum monte carlo simulator and an rsync implementation.

2010-12-21 06:40

A new Windows package was added. The warning system was fixed again (this time with tests). There were many minor bugfixes and some optimizations. Two new examples were added.

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