Python appending to two lists when it should only append to one

Question

I have a list called teams which contains two objects, these are objects of the same class and they both have a \"members\" list. I am appending to these lists individually. See

Answer 1

In all of your classes, you want to initialize instance variables like this:

def __init__(self):
    self.participants = []
    self.teams = []
    self.attacked = []
    self.fighting = 0

That way, they are separate for each fight, participant, team instead of shared for all fights, participants, or teams.