if 'a' or 'b' in L, where L is a list (Python) [duplicate]

Answer 1

Use this instead:

 if 'a' in L or 'b' in L:

If we want to check if all these of this "items" are in the list, all and a generator comprehension is your friend:

items = 'a', 'b', 'c'
if all(i in L for i in items):

Or if any of these items are in the list, use any:

if any(i in L for i in items)