https://pypi.python.org/pypi/pytest-cache crossed my way yesterday. If
someone were to want to write something that would rerun only the failed
scripts (-lf) n times to see if they were victimized by a
synchronization problem, this is how you would do it. I have an
implementation in mind, but its waaay down the list -- email me off list
if you feel like tackling it.
(Unless someone wanted to fun that work.)
-adam