Ara is an advanced search engine
for Debian packages developped in theEDOS project (of which we are also
taking part).
Out of curiosity, I checked today how many Debian packages were implemented
in Python (this is one of the metadata that are searchable using Ara).
The result is: many! Python is a close second behind C, and way ahead other
languages (including some who are supposed to eat Python for
breakfast!).
(Warning1: these results depend on metadata that may not have been set up correctly for every package. Warning2: these number will obviously change over the time.)