python3怎么关闭线程
python3利用自定义异常来退出并关闭线程。方法:1、利用raise自定义异常;2、当触发函数stop_thread时调用自定义异常进行退出。
利用异常使线程退出代码如下:
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)
停止线程
stop_thread(myThread)
补充知识:python threading实现Thread的修改值,开始,运行,停止,并获得内部值
推荐课程:python分布式多线程爬虫实战
来源:PY学习网:原文地址:https://www.py.cn/article.html