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

If you have Python2.7 or newer

from collections import Counter
items_to_test = (self.months, self.dollars, self.lifetime)
true_count = Counter(map(bool, items_to_test))[True]