Message 75509 - Python tracker

The URL for module documentation generated by pydoc is no longer valid.
 The attached patch corrects it for Python 2.5.3 by assembling the URL
using the Python version.

This patch shouldn't be forward-ported to 2.6 or 2.7; Sphinx changes the
URL pattern further, and 2.6 and 2.7 take this into account and get
their URLs correct.