子线程的强制性终止是我们实际应用时经常需要用到的，然而python官方并没有给出相关的函数来处理这种情况。网上找到一个挺合理的解决方案，这里分享给大家。
import threading
import time
import inspect
import ctypes
def _async_raise(tid, exctype):
"""raises the exception, performs cleanup if needed"""
tid = ctypes.c_long(tid)
if not inspect.isclass(exctype):
exctype = type(exctype)
res = ctypes.pythonapi.PyThreadState_SetAsyncExc(tid, ctypes.py_object(exctype))
if res == 0:
raise ValueError("invalid thread id")
elif res != 1:
# """if it returns a number greater than one, you're in trouble,
# and you should call it again with exc=NULL to revert the effect"""
ctypes.pythonapi.PyThreadState_SetAsyncExc(tid, None)
raise SystemError("PyThreadState_SetAsyncExc failed")
def stop_thread(thread):
_async_raise(thread.ident, SystemExit)
def test():
while True:
print('-------')
time.sleep(0.5)
if __name__ == "__main__":
t = threading.Thread(target=test)
t.start()
time.sleep(5.2)
print("main thread sleep finish")
stop_thread(t)
