Grzegorz Dostatni writes:
> Some time ago (I'm a bit fuzzy about the date) I read about sets in
> python. [...] Please tell me I'm not loosing my mind. Please tell
> me that these kind of things did/still exist?
Yep... introduced in python 2.3. Here is the description:
http://www.python.org/doc/2.3.3/whatsnew/node2.html
-- Michael Chermside