Alphanumeric string

Question

How to find max number occuring in alphanumeric string?

Ex:- input ='23dy10jp98'
Output=98

Answer 1

I'd use regular expressions.

import re

s = '23dy10jp98'
pattern = re.compile(r'\d+')

print(max([int(n) for n in pattern.findall(s)])) # output: 98

Answer 2

A way without re:

s = '23dy10jp98'
s = ''.join([d if d.isdigit() else ' '
for d in s ])
print(max([int(n) for n in s.split()]))