gevent_pause.py

>>> cond = True
>>> pause = Pause(lambda: cond)
>>> def p1():
...     print 'before pause'
...     pause.wait()
...     print 'after pause'
...
>>> def p2():
...     global cond, pause
...     time.sleep(0.5)
...     print '1st tick'
...     time.sleep(0.5)
...     print '2nd tick'
...     cond = False
...     time.sleep(0.5)
...     print '3rd tick'
...     pause.maybe_resume()
...     time.sleep(0.5)
...     print 'done'
...
>>> gevent.joinall([gevent.spawn(p1), gevent.spawn(p2)])
before pause
1st tick
2nd tick
3rd tick
after pause
done