python - 如何将 self 和 2 个参数传递给线程

Question

我只是尝试将 self 和其他 2 个参数传递给线程，但每次都会收到错误。

我尝试遵循其他示例，但到目前为止没有任何效果。

class X:
    def start(self):
        newStartupThread = threading.Thread(target=self.launch, args=(t1_stop, 
            self.launchAdditionalParams))
        newStartupThread.name = "ClientLaunchThread%d" % 
            (self.launchAttemptCount+1)
        newStartupThread.daemon = True
        newStartupThread.start()


    def launch(self, test, additionalParams):
        pass

我收到此错误:

TypeError: launch() takes at most 2 arguments (3 given)

**编辑代码以显示它在一个类中

Answer 1

根据 self 的存在，我认为这是在一个类中。

import threading


class X:
    def start(self):
        t1_stop = 8
        self.launchAdditionalParams = {}

        newStartupThread = threading.Thread(
            target=self.launch,
            args=(t1_stop, self.launchAdditionalParams),
        )
        newStartupThread.name = "ClientLaunchThread"
        newStartupThread.daemon = True
        newStartupThread.start()

    def launch(self, test, additionalParams):
        print(locals())


x = X()
x.start()

对我来说工作正常，输出

{'additionalParams': {}, 'test': 8, 'self': <__main__.X object at 0x000001442938F438>}