ipython/ipython — pull request #3157 by minrk (2013-04-10 20:03:00+00:00)
Title: use Python 3-style for pretty-printed sets

Sets are now `{1,2,3}` instead of `set([1,2,3])`, matching repr(set) on Python 3.

This change applies Python 3-style to all Python versions.

closes #3156