Python String casefold() method is used to convert string to lowercase. It is similar to the Python lower() string method, but the 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
string = "GEEKSFORGEEKS"
print("lowercase string: ", string.casefold())
Output:
lowercase string: geeksforgeeks
Difference between casefold() and lower() in Python
Python String casefold() Method is more aggressive in conversion to lowercase characters because it tends to remove all case distinctions in a String.
string = "ß"
print("Using lower():", string.lower())
print("Using casefold():", string.casefold())
Output:
Using lower(): ß Using casefold(): ss
Practical Example using Python String casefold() Method
Here, we have a Python String with characters of mixed cases. We are using the Python casefold() Method to convert everything to lowercase.
string = "WeightAGE oF THe DiScuSSiON"
print("Original String:", string)
# print the string after casefold transformation
print("String after using casefold():", string.casefold())
Output:
Original String: WeightAGE oF THe DiScuSSiON String after using casefold(): weightage of the discussion
