islower() : to check if all chars in a string are lower case or not in Python

islower()

my_str.islower()

Returns True if all chars in a string are in lower case, otherwise returns False

my_str='_abc45'
print(my_str.islower())     # Output is True

my_str='ab#cd'
print(my_str.islower())     # Output is True

my_str='A_abc1234'
print(my_str.islower())     # Output is False

my_str='pq?rs'              
print(my_str.islower())     # Output is True

my_str='pq rs'              
print(my_str.islower())     # Output is True

my_str='12ab'              
print(my_str.islower())     # Output is True

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