Python String lower()

Summary: in this tutorial, you’ll learn how to use the Python String lower() method to return a copy of a string with all characters converted to lowercase.

Introduction to the Python String lower() method #

The lower() is a string method that allows you to return a copy of a string with all characters converted to lowercase.

The following shows the syntax of the lower() method:

str.lower()Code language: Python (python)

The lower() method has no parameters.

Note that the lower() method doesn’t change the original string. It just returns a copy of the original string with all characters converted to lowercase.

If you want to return a copy of a string with all characters converted to uppercase, you use the string upper() method.

Python String lower() method example. #

The following example shows you how to use the lower() method to return a copy of a string with all characters converted to lowercase:

s = 'Python Lowercase'
new_s = s.lower()

print(s)
print(new_s)Code language: Python (python)

Output:

Python Lowercase
python lowercaseCode language: Python (python)

Summary #

Use the Python string lower() method to return a copy of a string with all characters converted to lowercase.

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