For real, too many installations of Python on OSX Mountain Lion
问题 I have three different Python 2.7s at: /Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7 /opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7 /System/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7 I use a number of packages that come from different sources. I am currently installing packages from port (MacPorts), easy_install , pip (installed by easy_install ), and Mercurial. There are also some that I have to install from image or build from