Already done by someone

You need to delete the comment section. Then it must work.

You mean the last sample test in Python, right?

test.assert_equals(solve_runes("??*1=??"), 2, "Answer for expression '??*11=??' ");

Please use spoiler flag next time. Anyone is able to read your comment from the dashboard.

Yes, the boolean is a 1 bit integer, subclass of int, so you can use boolean itself as an index too for example ["apple", "orange"][True] will return with "orange". And if you add booleans the product will be an integer.

False + False = 0
False + True = 1
True + True = 2
Etc...