[PATCH 1/2] test: add a function to run Python tests

[David Bremner]

On Wed,  7 Dec 2011 10:46:17 +0100, Thomas Jost <schnouki at schnouki.net> 
wrote:
> The new test_python() function makes writing Python tests a little easier:
> - it sets the environment variables as needed
> - it redirects stdout to the OUTPUT file (like test_emacs()).

pushed both, after rebasing.