Python-简单线程不会停止

Question

I'm having a problem with a python script using threads. I could mimic the problem with the following code:

from threading import Thread

def func1():
    while True:
        print 'Function 1'

def main():
    t = Thread(target = func1)

    t.start()

    for i in xrange(100000):
        print 'Main'

    t.stop()

    print 'End'

if __name__ == '__main__':
    main()

The problem is when I interrupt the script with Ctrl + C or when it reaches its end, the thread running func1() won't stop.

I can only interrupt the execution if open the terminal and killall python .

This is the first time I'm working with threads in Python. What am I doing wrong?

Answer 1

My approach (perhaps not the best, but it works) is:

1. Have a variable that the thread checks to see if it should stop.
2. Catch the ctrl-c in your main function.
3. When caught, main function sets the variable that indicates the thread should stop.
4. Main function calls join() on the thread to wait for it to finish.
5. Thread checks the variable, sees it is set, and returns (stops).
6. The join() returns and you allow your main function to exit.