Saturday, September 20, 2008

Shed Skin 0.0.29

I have just released version 0.0.29 of Shed Skin, an experimental (restricted) Python-to-C++ compiler. It's been a while since the last release (well, just under 4 months), because of work and vacation, but mostly because there have been so many changes.

Thanks to the work of Karel Heyse, Pavel Vinogradov, FFAO and David Marek, there is now a pretty much complete implementation of the datetime module. Thanks to a suggestion by Albert Hofkamp, I added support for most of the ConfigParser module (by compiling it with Shed Skin of course), which led me to fix several outstanding but important problems. For example, support for inheritance hierarchies was greatly improved, and mapping keys should now work, too ('%(key)x..' % some_dict).

Since the previous release, I've also gone through the pains of installing FreeBSD, OpenSolaris and 64-bit Ubuntu on a spare PC and testing Shed Skin on each of them, with the result that these platforms are now 'officially' supported. Please see the updated 'installation' section of the tutorial. I also received some GCC 4.3 patches (Seo Sanghyeon and Winterknight), which should work fine now, too. So I guess most platforms should be covered now.

Some other improvements:

-improved support for importing from nested modules such as os.path
-__init__ methods are much less a special-case
-improved support for calling ancestor methods (e.g. Parent.__init__)
-all example programs (ss-progs) now compile as extension modules
-staticmethod and property decorator support (Seo Sanghyeon)
-Shed Skin doesn't crash on highly dynamic/recursive types anymore, making it easier to debug programs to get them to compile
-several fixes in the re module, e.g. re.sub now accepts a replacement function
-tuple hash caching was disabled, as CPython doesn't do this either

For the full changelog, see the release notes wiki at the Googlecode site. Please try out the new release, and let me know about any problems. Note that I probably won't be very responsive for at least a week or so - it has been a somewhat difficult release, and I could use some rest.. :)