Python: define multiple variables of same type?

Question

Probably a duplicate, but I can't find the answer by searching with these terms, at least.

Is there a quicker way to do this in Python?

level1 = {}
level2 = {}
level3 = {}

I've tried

level1 = level2 = level3 = {}

But that seems to create copies of the object, which isn't what I want. And

level1, level2, level3 = {}

throws an error.

Answer 1

level1 = level2 = level3 = {}

Doesn’t create copies. It lets reference level{1-3} to the same object. You can use a list comprehension instead:

level1, level2, level3 = [{} for dummy in range(3)]

or more readable:

level1, level2, level3 = {}, {}, {}