If string contains one of several substrings Python [duplicate]

Question

Similar to here: Does Python have a string contains substring method? This question only deals with one substring within a string, I want to test one of several.

Something like:

if 'AA' or 'BB' or 'CC' not in string:
    print 'Nope'

However, if my test string is:

string='blahblahAA'

the if still evaluates to True and prints the statement. I'm probably just understanding the syntax incorrectly, any help would be appreciated.

Thanks!

Answer 1

Use any for this:

>>> s = 'blahblahAA'
>>> any(x not in s for x in ('AA', 'BB', 'CC'))
True

Your current code is equivalent to:

if ('AA') or ('BB') or ('CC' not in string)

As 'AA' is True(bool('AA') is True), so this always evaluates to True.