Python String to Lowercase – casefold()

String casefold()

Python String casefold() method converts string into lower case.

In this tutorial, we will learn the syntax and examples for casefold() method of String class.

Syntax

The syntax of String casefold() method in Python is

str.casefold()

Examples

Convert String to Lowercase

In this example, we will take a string, and converts this string into lower case using str.casefold() method.

Example.py

x = 'Hello World!'
result = x.casefold()
print(result)

Output

hello world!

String is already Lowercase

If the given string already contains only lowercase letters, then str.casefold() does nothing.

Example.py

x = 'hello world!'
result = x.casefold()
print(result)

Output

hello world!

Conclusion

In this Python Tutorial, we learned how to convert characters in string to lowercase using String method – casefold().