[issue12246] Warn when trying to install third-party module from an uninstalled checkout

[Éric Araujo]

Éric Araujo <merwok at netwok.org> added the comment:

Great!  I will edit a bit the message and commit this.

----------
stage:  -> commit review
type:  -> behavior

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue12246>
_______________________________________