Python:线程仍在运行 [英] Python: is thread still running

问题描述

如何查看线程是否已完成?我尝试了以下操作，但是即使我知道线程仍在运行，threads_list也不包含已启动的线程.

How do I see whether a thread has completed? I tried the following, but threads_list does not contain the thread that was started, even when I know the thread is still running.

import thread
import threading

id1 = thread.start_new_thread(my_function, ())
#wait some time
threads_list = threading.enumerate()
# Want to know if my_function() that was called by thread id1 has returned 

def my_function()
    #do stuff
    return

推荐答案

关键是使用线程而不是线程来启动线程:

The key is to start the thread using threading, not thread:

t1 = threading.Thread(target=my_function, args=())
t1.start()

然后使用

z = t1.isAlive()

或

l = threading.enumerate()

您还可以使用join():

You can also use join():

t1 = threading.Thread(target=my_function, args=())
t1.start()
t1.join()
# Will only get to here once t1 has returned.

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