Pyrex 0.4.2 is now available:
This version should fix the problem introduced in 0.4.1 that prevented extension classes from showing up in the module namespace.
There is also a significant new language feature: C functions which don't return Python objects can now be declared so that they will propagate exceptions to their callers. See "Error Return Values" in the Language Overview.
There are numerous other bug fixes and improvements. See the CHANGES file in the distribution for details.
What is Pyrex? --------------
Pyrex is a new language for writing Python extension modules. It lets you freely mix operations on Python and C data, with all Python reference counting and error checking handled automatically.