Detect numbers in string

Question

value = 'ad.41.bd'

if len(value) == len(value.strip({0,1,2,3,4,5,6,7,8,9})):
    # no numbers
else:
    # numbers present

There a cleaner way of detecting numbers in a string in Python?

Answer 1

What about this?

import re
if not re.search('\d+', value):
    # no numbers
else:
    # numbers present

Answer 2

To detect signs in the numbers, use the ? operator.

import re
if not re.search('-?\d+', value):
    # no numbers
else:
    # numbers present