Python在多线程上关闭线程 [英] Python close a thread on multithreading

问题描述

为简化这种情况，我正在尝试终止一个仍在Python 2.7中运行的线程，但我不确定该怎么做.

To simplify the situation I'm having: I'm trying to terminate a thread while it is still running in Python 2.7, and I'm not sure how to do it.

使用以下简单代码:

import time
import threading

def thread1():
        print "Starting thread 1"
        while True:
                time.sleep(0.5)
                print "Working"

thread1 = threading.Thread(target=thread1, args=())
thread1.start()

time.sleep(2)
print "Killing thread 1"
thread2.stop()
print "Checking if it worked:"
print "Thread is: " + str(thread1.isAlive())

线程1一直处于工作状态"，我正在尝试在主线程中将其杀死.关于如何做的任何想法?我尝试过:

Thread 1 keeps on 'working' and I'm trying to kill it in the main thread. Any idea on how to do it? I've tried:

threat1.terminate
threat1.stop
threat1.quit
threat1.end

这一切似乎都表明，没有办法通过简单的代码来真正阻止它.你有什么建议?

This all seems to point that there is no way to really stop it with a simple line of code. What could you suggest?

推荐答案

使用线程安全threading.Event()终止Thread控件:

To terminate an Thread controlled, using a threadsafe threading.Event():

import threading, time

def Thread_Function(running):
    while running.is_set():
        print('running')
        time.sleep(1)

if __name__ == '__main__':
    running = threading.Event()
    running.set()

    thread = threading.Thread(target=Thread_Function, args=(running,))
    thread.start()

    time.sleep(1)
    print('Event running.clear()')
    running.clear()

    print('Wait until Thread is terminating')
    thread.join()
    print("EXIT __main__")

输出:

running  
running  
Event running.clear()  
Wait until Thread is terminating  
EXIT __main__

使用Python:3.4.2测试

Tested with Python:3.4.2

在线演示: reply.it

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