events - How to properly block code execution in Python? -

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i need block execution of greenlet till condition occurs, following: 

... while not some_condition:     gevent.sleep(0.00000000000001) ...

this approach cpu intensive. if change gevent.sleep(0.000000000001) gevent.sleep(0.1), cpu usage drops 1/10. time, in worst case scenario, code continue execution 0.1 seconds after some_condition occurs, not right after.

so, how can make greenlet pause execution until condition occurs?

using gevent.event.event solved problem: http://www.gevent.org/gevent.event.html


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