what IDE is the best to write python?

[Joe Riopel]

I typically use vim/vi, because it's usually already installed on the
OS's I work with and vim for Windows works the same. Also, using the
same editor across these different OS's, I don't have to worry too
much soft/hard tabs. The contents of rc files on both Windows and
UNIX/Linux are the same too, so I can just maintain one run control
file for all OS's.

I have played around with some IDE's for python, and found that Komodo
Edit is pretty good. It's also free:
http://www.activestate.com/komodo_edit/