condition-variable

Why does Python threading.Condition() notify() require a lock? Question: My question refers specifically to why it was designed that way, due to the unnecessary performance implication. When thread T1 has this code: cv.acquire() cv.wait() cv.release() and thread T2 has this code: cv.acquire() cv.notify() # requires that lock be held cv.release() what happens is that T1 …

threading.Condition vs threading.Event Question: I have yet to find a clear explanation of the differences between Condition and Event classes in the threading module. Is there a clear use case where one would be more helpful than the other? All the examples I can find use a producer-consumer model as an example, where queue.Queue would …