Python String casefold() method is used to convert string to lower case. It is similar to lower() string method, but case removes all the case distinctions present in a string.
Python String casefold() Method Syntax
Syntax: string.casefold()
Parameters: The casefold() method doesn’t take any parameters.
Return value: Returns the case folded string the string converted to lower case.
Python String casefold() Method Example
Python3
string = "GEEKSFORGEEKS"
print("lowercase string: ", string.casefold())
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Output:
lowercase string: geeksforgeeks
Python String lower() vs casefold()
Python3
string = "ß"
print("Using lower():", string.lower())
print("Using casefold():", string.casefold())
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Output:
Using lower(): ß Using casefold(): ss
Explanation: Python String casefold() Method is more aggressive in conversion to lower case characters because it tends to remove all case distinctions in a String.
Practical Example using Python String casefold() Method
Here, we have a Python string with characters of mixed cases. We are using Python String casefold() Method to convert everything to lowercase.
Python3
string = "WeightAGE oF THe DiScuSSiON"
print("Original String:", string)
# print the string after casefold transformationprint("String after using casefold():", string.casefold())
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Output:
Original String: WeightAGE oF THe DiScuSSiON String after using casefold(): weightage of the discussion
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