[Piglit] How to use Piglit ?

[Maxence Le Doré]

Hello,

I would like to start contributing to Piglit. But I'm not able to
launch a test except the sanity one given in the README. I'm sure this
is because I'm not familiar at all with python.
Could you give me a bunch a illustrating commands/actions that you
usely do while testing/hacking piglit. It will make me gain a lot of
time instead of wasting hours.

Thanks