How to start and stop thread?

Question

Sorry for the old question. I have clarified it. How can I start an stop thread with my poor thread class?

EDIT: It is in loop, I want to restart it again at the beginning of the code. How can I do start-stop-restart-stop-restart?

My class:

import threading

class Concur(threading.Thread):
    def __init__(self):
        self.stopped = False
        threading.Thread.__init__(self)

    def run(self):
        i = 0
        while not self.stopped:
            time.sleep(1)
            i = i + 1

In the main code, I want:

inst = Concur()

while conditon:
    inst.start()

    #after some operation
    inst.stop()
    #some other operation

Answer 1

The implementation of stop() would look like this:

def stop(self):
    self.stopped = True

If you want to restart, then you can just create a new instance and start that.

while conditon:
    inst = Concur()
    inst.start()

    #after some operation
    inst.stop()
    #some other operation

The documentation for Thread makes it clear that the start() method can only be called once for each instance of the class.

If you want to pause and resume a thread, then you'll need to use a condition variable.