AssertionError: Thread.__init__() not called

在使用thread的时候，定义如下类：

class newThread(threading.Thread):
def init(self, threadID, name, counter):
threading.Thread.init(self)
self.threadID = threadID
self.name = name
self.counter = counter

注意：

“If the subclass overrides the constructor, it must make sure to invoke the base class constructor (Thread.init()) before doing
anything else to the thread.”

也就是说子类的__init__()方法调用父类的__init__方法，一定要在第一行调用。否则会出标题上的错误！

转自：https://www.cnblogs.com/bluescorpio/archive/2012/07/23/2605618.html

2019-07-04 今天又遇到这个问题了：

import threading

class MyThread(threading.Thread):
def init(self,counter,name):
#必须加上这一句话否则会出错
threading.Thread.init(self)
self.counter = counter
self.name = name

def run(self):
    self.counter[0] += 1
    print (self.counter[0])

if name == ‘main’:
counter = [0]
for i in range(1,11):
t = MyThread(counter,i)
t.start()