Package python-module-Cython: Information

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 for external C
libraries, and for fast C modules that speed up the execution of Python
code.