Since Python 2.6, it seems the documentation is in the new reStructuredText format, and it doesn\'t seem very easy to build a Texinfo Info file out of the box anymore.
I
I've packaged up the Python docs as a texinfo file.
If you're using Emacs with MELPA, you can simply install this with M-x package-install python-info.
M-x package-install python-info