如何迭代两个不同长度的列表而不合并它们

Question

Is there a way to iterate over two lists of different length at the same time without combining them?

I tried itertools.product(list1, list2) but that's very similar to a nested loop. So the second list gets iterated for each item of the first list, which is not what I want.

I want to compare both lists and see if they match.

Answer 1

If your purpose is to check for differences, you can use set s. Let's say you have two lists, like

a=["one", "two", "three"]
b=["one", "other"]

You can check the difference by converting them to set:

print(set(a) - set(b))

The order matters: the first item is the one you are checking against the second:

print(set(a) - set(b)) returns {'three', 'two'} (the items present in the first set that are missing in the second), while

print(set(b) - set(a)) returns {'other'}