mxcl/homebrew — pull request #10650 by rmsr (2012-03-02 21:04:56+00:00)
Title: Match python deployment target to system python, to fix distutils exception in virtualenv

The mismatch (brew: 10.5 or lower, system python: 10.7 on lion) causes distutils to error out when one uses a brew-python-installed virtualenv to create a system python environment (ie for python2.6).