30-seconds-of-code/snippets/is_lower_case.md

is_lower_case

Checks if a string is lower case.

Convert the given string to lower case, using str.lower() method and compare it to the original.

def is_lower_case(str):
    return str == str.lower()

is_lower_case('abc') # True
is_lower_case('a3@$') # True
is_lower_case('Ab4') # False