About Cython
Cython is a language that makes writing C extensions for the Python language as easy as Python itself. Cython is based on the well-known Pyrex, but supports more cutting edge functionality and optimizations.
The Cython language is very close to the Python language, but Cython additionally supports calling C functions and declaring C types on variables and class attributes. This allows the compiler to generate very efficient C code from Cython code.
This makes Cython the ideal language for wrapping external C libraries, and for fast C modules that speed up the execution of Python code.
Documentation
If you still have questions, feel free to send an email to the cython users or cython development mailing lists.
People
Lead Developers: Stefan Behnel, Robert Bradshaw, and Dag Sverre Seljebotn.
Contributors: Greg Ewing, Martin Albrecht, Peter Alexander, Arfrever Frehtes Taifersar Arahesis, Grant Baillie, Gustavo Barbieri, Ondrej Certik, Craig Citro, Timothy Clemans, Dave Cournapeau, Lisandro Dalcín, Julien Danjou, Nicolas Dumazet, Eric Firing, Gary Furnish, Gabriel Gellner, Christoph Gohlke, Brian Granger, Magnus Lie Hetland, Thomas Hunger, Kay Hayen, Jim Kleckner, Mark Lodato, David McNab, Vasil Manolov, Sturla Molden, Chris Perkins, Andrey Plotnikov, Paul Prescod, Prabhu Ramachandran, Holger Rapp, Kirill Smelkov, Kurt Smith, William Stein, Andrew Straw, Peter Todd, Erik Tollerud, Carl Witty, Felix Wu.
Financial Contributions: Google and Enthought funded Dag Seljebotn to greatly improve Cython integration with NumPy. Kurt Smith and Danilo Freitas were funded through the Google Summer of Code program to work on improved Fortran and C++ support respectively.
Download
Cython is freely available under the open source Apache License.
The latest release of Cython is 0.12.1 (released 2010-02-02). You can download it as a gzipped tar or as a zip file.
Cython is also available from the PyPi package repository.
Christoph Gohlke has created Windows installers available for download on his site.