python – Removing the opposite value from a list

Question:

There is a list with two elements (there are always two of them):

any_list = [5, 7]

And meaning:

item = 5

How can I nicely/correctly get the opposite value from the list?

At the moment, only the helper function comes to mind

def get_another_item(any_list, item):
    for i in any_list:
        if item != i:
            return i

Answer:

You can use the result of a boolean expression ( 0 / 1 ) as an index.

Example:

any_list = [5, 7]
item = 5

r = any_list[any_list[0] == item]  # 7