Looks like some distribution strip the extensions of the python commands and
some don't. Try to find the correct commands by ourself.
Reported-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
Reviewed-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
c8b8e26735