Python: if more than one of three things is true, return false

Question

I\'m writing a django model that allows my site to have coupons.

Coupons can have three types: lifetime account voucher, certain period of months voucher, certain numb

Answer 1

Even better solution than before, with combinations, any, and all. Assuming you have all the attributes you want to test in a sequence called attributes:

from itertools import combinations
any(map(all, combinations(attributes, 2)))

In english, it reads

Are any length-2 combinations of the attributes all true?

This solution works for an arbitrary number of attributes, and can be modified to test for an arbitrary number of them being true.

Although admittedly it's very inefficient, I'd say it's pretty cute and readable.