pypa/virtualenv — pull request #196 by kennethreitz (2011-12-09 01:02:47+00:00)
Title: Fix for PYTHONDONTWRITEBYTECODE Nuance

If you have both the `PYTHONDONTWRITEBYTECODE` and `VIRTUALENV_USE_DISTRIBUTE` environment variables set, virtualenv yells at you, because it only checks for the `--distribute` flag.