[Python] Why the cycle running in main proccess wont stop after being class state modified...

Consider this sample:

import multiprocessing as mp
import time

class CycleThatDoesntStop:
shouldrun = True

def run(self):
while self.shouldrun:
print("im alive", self.shouldrun)
time.sleep(0.5)

def stop(self):
print("stop was called!")
self.shouldrun = False

def stopper(cycle_inst):
time.sleep(0.6)
print("stopping...")
cycle_inst.stop()
print("done?")

if __name__ == '__main__':
cycler = CycleThatDoesntStop()
p = mp.Process(target=stopper, args=(cycler,))
p.start()
cycler.run()
p.join()


Why does the cycle continues to go on? Is it because stopper func doesn't get access to memory, though there is no exceptions?

Continue reading...