I've installed Python using homebrew. which python returns /usr/local/bin/python which should be the homebrew install, if I'm not mistaken. When I run python, I get
Python 2.7.4 (v2.7.4:026ee0057e2d, Apr 6 2013, 11:43:10)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
which tells me I'm still on version 2.7.4 rather than 2.7.5. If I then run brew upgrade python, I get Error: python-2.7.5 already installed.
Can anyone help me figure out what's happening here?