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

Introduction to the Python String upper() method

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

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

The upper() method takes no argument.

Note that the upper() method doesn’t change the original string.

To return a copy of a string with all characters converted to lowercase, you use the str.lower() method.

Python String upper() method example

The following example uses the upper() method to return a copy of a string with all characters converted to uppercase:

Output:

Summary

• Use the Python string upper() method to return a copy of a string with all characters converted to uppercase.