Python 的类对于传入的某些参数比如list类型具有修改影响

import threading

data = [0,1,2,3,4,5]

class T1(threading.Thread):
    def __init__(self, data):
        super(T1, self).__init__()
        self.data = data #会影响到外面的list
    
    
    def run(self):
        self.data.clear()


if __name__ == "__main__":
    t1 = T1(data)
    t1.start()

    for i in range(1000):
        print(data)