C-Extensions for Python
Description
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. Development of Cython is mainly motivated by the needs of SAGE.
Website
See Also
Pyrex for some partly outdated talks/tips on how to use Cython/Pyrex/SageX from Sage