Why did you start using Python?
I was using Perl for my programming needs, and was often frustrated. I hated reading other people's Perl code and basically would often result to re-writting entire functions rather than trying to debug someone else's code.
Also, coming back to code I'd written months before was a headache. (admittidly I was still pretty much a beginning programmer)
I first ran across Python when reading this article: http://www.wired.com/culture/education/news/2002/09/54916
The team chose Python as their programming language because they could write cleaner, faster code more easily in it. But Haynes was the only one in the group who had coded in that language before, so the other four students had to learn Python as well as solve the various technical and interface problems.
This quote got my attention, and I gradually picked up Python.
Almost 6 years of Python and I have yet to feel the frustration that drove me from Perl.
UPDATE
Great responses everyone thanks!