Question

我正在使用threading.py，我有以下代码：

import threading  
class MyClass(threading.Thread):  
    def __init__(self,par1,par2):
       threading.Thread.__init__(self)  
       self.var1 = par1  
       self.var2 = par2  
    def run(self):
       #do stuff with var1 and var2 while conditions are met
... 
... 
... 
myClassVar = MyClass("something",0.0)

我收到以下错误：

18:48:08    57  S E myClassVar = MyClass("something",0.0)  
18:48:08    58  S E File "C:\Python24\Lib\threading.py", line 378, in `__init__`  
18:48:08    59  S E assert group is None, "group argument must be None for now"  
18:48:08    60  S E AssertionError: group argument must be None for now

我是使用python的新手，这是我第一次使用线程...

这里的错误是什么？

谢谢，

乔纳森

Answer 1

您不必扩展Thread来使用线程。我通常使用这种模式...

def worker(par1, par2):
    pass # do something

thread = threading.Thread(target=worker, args=("something", 0.0))
thread.start()

Answer 2

您也可以像在示例中一样使用类和覆盖线程，只需将调用更改为super即可。例如：

import threading  
class MyClass(threading.Thread):  
    def __init__(self,par1,par2):
       super(MyClass, self).__init__()
       self.var1 = par1  
       self.var2 = par2  
    def run(self):
       #do stuff with var1 and var2 while conditions are met

对init的调用已经自动发送给它，所以当你再次提供它时，它会在Thread类构造函数中设置另一个参数，并且事情会变得混乱。

Python线程覆盖init

2 个答案: