how to find a number in a string python code example

Example 1: python extract all numbers from string re

>>> str = "h3110 23 cat 444.4 rabbit 11 2 dog"
>>> [int(s) for s in str.split() if s.isdigit()]
[23, 11, 2]

Example 2: how to get a number from a string in python

string = "I am 14 years old"
for i in string.split():
  if i.isdigit():
    print(i)
print()