I've been using Python for a very long time. The following has been confusing me today. Suppose I have this class called Node: class Node: def __init__(self, x = []): self.x = x a = Node() b = Node() a.x.append(3) b.x.append(5) To my horror, a.x and b.x both are [3,5]. What is happening here? Also, how to I stop this from happening? I just want a.x to be [3] and b.x to be [5], not [3,5]. Continue reading...
