How does a threading.Thread yield the rest of its quantum in Python?

Question

I\'ve got a thread that\'s polling a piece of hardware.

while not hardware_is_ready():
    pass
process_data_from_hardware()

But there are

Answer 1

time.sleep(0) is sufficient to yield control -- no need to use a positive epsilon. Indeed, time.sleep(0) MEANS "yield to whatever other thread may be ready".