超类__init__没有认出它的kwargs

Question

我正在尝试使用提供的StoppableThread课程作为另一个问题的答案:

import threading

# Technique for creating a thread that can be stopped safely
# Posted by Bluebird75 on StackOverflow
class StoppableThread(threading.Thread):
    """Thread class with a stop() method. The thread itself has to check
    regularly for the stopped() condition."""

    def __init__(self):
        super(StoppableThread, self).__init__()
        self._stop = threading.Event()

    def stop(self):
        self._stop.set()

    def stopped(self):
        return self._stop.isSet()

但是,如果我运行如下:

st = StoppableThread(target=func)

我明白了:

TypeError:__init__()得到一个意外的关键字参数'target'

可能是对如何使用它的疏忽.

Answer 1

本StoppableThread类不参加或通过任何其他参数threading.Thread的构造函数.你需要做这样的事情:

class StoppableThread(threading.Thread):
    """Thread class with a stop() method. The thread itself has to check
    regularly for the stopped() condition."""

    def __init__(self,*args,**kwargs):
        super(threading.Thread,self).__init__(*args,**kwargs)
        self._stop = threading.Event()

这会将位置和关键字参数传递给基类.