How to Use String casefold() Method in PythonPython Basics

The casefold() method converts strings to casefolded format for caseless matching.

#!/usr/bin/python3
# -*- coding: UTF-8 -*-

str = "AaABB"
print (str.casefold())

str = "HELLO WORLD"
print (str.casefold())

Output:

str:  aaabb
str:  hello world

str.casefold()

The method doesn’t take any parameters.

It returns the casefolded string, i.e. the string converted to lower case.