[hcarvalhoalves]

> How do I make sure the right python version gets captured if I don't check in the /env/ folder?

Document it in setup.py:

    if sys.version_info < (2, 6, 0):
        sys.stderr.write("Foo requires Python 2.6 or newer.\n")
        sys.exit(1)

You're using setup.py, right? ;)