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Python - String islower() Method

The islower() string method returns True if all the characters in a string are lower case letters.

Note : None of the string methods change the original string and only return a new string which reflects the change performed by the string method, hence the returned string must be stored or used(if needed to reflect the result), otherwise it is lost.

Signature of islower() method

The islower() method has no parameters, so we don't have to worry about passing it some value.

# Signature of islower() method 

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