Question

import threading
event = threading.Event()
event.set()
print event.wait(1)
None
event.clear()
print event.wait(1)
None

So it basically returns None both when condition was True and False. How can I distinguish the case of timeouting from the one with no waiting at all? Meanwile, the docs say

This method returns the internal flag
on exit, so it will always return True
except if a timeout is given and the
operation times out.

Am I missing something?

Answer 1

Yes, you’re missing next sentence in documentation which writes:

Changed in version 2.7: Previously,
the method always returned None.