python封装线程类（启动、终止、查看线程状态）

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一、简单说明

1. 将启动、终止和查看线程状态的方法封装成类
2. 声明时传入要启动的方法
3. 通过 start、stop 和 state 执行启动、终止 和 查看状态

二、实现步骤

# encoding: utf-8

import time
import threading
import inspect
import ctypes


class MyThreadFunc(object):
    '''
    手动终止线程的方法
    '''
    def __init__(self, func, argsTup):
        self.myThread = threading.Thread(target=func, args=argsTup)

    def start(self):
        print('线程启动')
        self.myThread.start()

    def state(self):
        status = self.myThread.is_alive()
        print('线程状态: {0}'.format(status))
        return status

    def stop(self):
        print('线程终止')
        try:
            for i in range(5):
                self._async_raise(self.myThread.ident, SystemExit)
                time.sleep(1)
        except Exception as e:
            print(e)

    def _async_raise(self, 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")


if __name__ == '__main__':

    # 定义一个读秒器
    def second_count(arg1, arg2):
        i = 0
        while True:
            i += 1
            print("{}-{}: {}".format(arg1, arg2, i))
            time.sleep(1)

    # 声明一个线程类
    mythread = MyThreadFunc(second_count, ("好耶", "haoye"))

    # 启动 --------------------------------------
    mythread.start()

    # 等待三秒
    time.sleep(3)

    # 查看线程状态
    mythread.state()

    # 等待三秒
    time.sleep(3)

    # 终止线程 ----------------------------------
    mythread.stop()

    # 等待三秒
    time.sleep(3)

    # 再次查看线程状态
    mythread.state()

三、测试