how to only get number from string in python code example

Example 1: python get int from string

>>> import re
>>> string1 = "498results should get"
>>> int(re.search(r'\d+', string1).group())
498

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()