pythonbuilt-in modules scipyscientific python modules pypipython package index search"python module for some useful urlsthis contains the list of all the "batteries includedmodules that come with python for each module it links through to their documentation scientific python contains very many subject-specific modules for python most depend on the numerical python module numpy (do check for python packagesthis is the semi-official dumping ground for everything else and for everything else there' google (who are big python usersby the way