Homebrew/homebrew — pull request #26229 by mikemcquaid (2014-01-28 18:26:27+00:00)
Title: python_dependency: cleanup and fix build env.

* Only set PYTHONPATH for Python 2.
* Set the Python binary for superenv.

@jacknagel @mistydemeo Ping.

References #24842.
Closes #26216.
Closes #26218.