Pyrex - a Language for Writing Python Extension Modules

Brief Description Pyrex lets you write code that mixes Python and C data types any way you want, and compiles it into a C extension for Python. Documentation About Pyrex Language Overview FAQ Contributed by Users Quick Guide to Pyrex Contributed by Michael JasonSmith. If the above link doesn't work, there is a copy here. Embedding Pyrex Using Pyrex to write stand-alone programs that embed a Python interpreter. Contributed by David McNab. C++ Wrapping Tutorial Contributed by David McNab. Warning: This page is really for Cython and mentions some Cython features that Pyrex doesn't have. Some of what it says is also obsoleted by recently-added C++ features in Pyrex. Download Pyrex compiler and documentation Pyrex-0.9.9.tar.gz (255272 bytes, 2010-04-12) Test suite and testing framework Pyrex-Tests-0.9.9.tar.gz (447472 bytes, 2010-04-12) Note: Currently the testing framework will only work out of the box on MacOS X or Linux, but should be adaptable to other unices with a little work. Release Notes for Version 0.9.9 Changes Mercurial Repository and Updates Previous Releases Pyrex requires Python 2.3 or later, both to run the Pyrex compiler and to use the generated extension modules. News Version 0.9.9 Some features for interfacing with C++ code have been introduced, a few things have been changed, and some bugs have been fixed. See the Release Notes and CHANGES for details. Old News Patches WARNING: I have not reviewed or tested these patches - use them at your own risk. Sam Rushing has submitted a patch to Pyrex 0.9.3.1 which adds some conditional compilation facilities. Email message rushing-2006-03-29.tar.gz Old Patches Lenard Lindstrom contributed some patches to Pyrex 0.9.3.1 to improve the C++ compatibility of the generated code. Since 0.9.4 these should no longer be necessary. lindstrom-2005-10-14.tar.gz lindstrom-2005-11-01.tar.gz --- readme Packages These packages are maintained by others, so they may not be up to date with the latest version. RedHat/Fedora Pyrex-0.9.3.1-1.noarch.rpm Pyrex-0.9.3.1-1.src.rpm Contributed by Giovanni Bajo Fedora Core 1 Fedora Core 2 Contributed by Jan Ondrej Windows Windows Contributed by Samuel Thibault Related Tools pyrexdoc Generate HTML documentation from a compiled Pyrex module, by David McNab Pyrex Builder X A mini-IDE for building Pyrex projects on MacOSX, by Nik Molnar. Mailing List You are invited to subscribe to the Pyrex Mailing List for all Pyrex-related discussions. Thanks are due to Johannes Grødem of Copyleft Software for setting up and hosting this list at the request of Joakim Ziegler. Discussion of Pyrex is also welcome on the Python newsgroup, comp.lang.python. IRC Channel irc.freenode.net #pyrex I don't normally use IRC myself, but you may find someone there who's able to help you. Author Greg Ewing (greg.ewing@canterbury.ac.nz )

Example Pyrex modules # #  Calculate prime numbers # def primes(int kmax):   cdef int n, k, i   cdef int p[1000]   result = []   if kmax > 1000:     kmax = 1000   k = 0   n = 2   while k < kmax:     i = 0     while i < k and n % p[i] <> 0:       i = i + 1     if i == k:       p[k] = n       k = k + 1       result.append(n)     n = n + 1   return result # #  Defining an extension type # cdef class Spam:   cdef int amount   def __cinit__(self):     self.amount = 0   def get_amount(self):     return self.amount   def set_amount(self, new_amount):     self.amount = new_amount   def describe(self):     print self.amount, "tons of spam!"