python-dev 2.5.1-1ubuntu2 (i386 binary) in ubuntu gutsy

 Header files, a static library and development tools for building
 Python modules, extending the Python interpreter or embedding Python
 in applications.
 .
 Includes the python distutils, which were in a separate package up to
 version 1.5.2.
 .
 This package is a dependency package, which depends on Debian's default
 Python version (currently v2.5).