Python/RegEx/String with combination of a and bs/String has a followed by 0 or more bs/String has a followed by 0 or more bs.py

import re

str = input("Enter a string: ")
rePat = r'ab*'
if re.findall(rePat,str):
    print("String has an a followed by 0 or more bs")
else:
    print("String does not have an a followed by 0 or more bs")