How To Use Python String Upper Method – Easy Python Example Code

In this tutorial, we’ll learn what Python string upper() method is and how to properly use it. We’ll go through multiple Python code examples to understand how upper() method works in Python.

Introduction: Python String upper() Method

This method is used to return a new string after converting all alphabets in a string to uppercase format.

Syntax of upper() Method

string.upper()

• Python string upper() method does not take any arguments.
• This method returns a string having all its alphabets converted to uppercase.

Example 1: Python String upper() Method applied on a String

strVal='PYTHON PROGRAMMING'
print(strVal.upper())
print('this is python.'.upper())
print('python pRogramming'.upper())
print('PYThON3'.upper())

Output

PYTHON PROGRAMMING 
THIS IS PYTHON. 
PYTHON PROGRAMMING 
PYTHON3

We can see that Python string upper method has returned new strings after converting all the alphabets of the above specified strings to uppercase.

Example 2: upper() Method used in Python For Loop

listItems=['this','iS','@','pythON','ProgrAmmiNG','language.'] 
valStr='' 
for val in listItems: 
    valStr=valStr+ val.upper()+' ' 
print(valStr)

Output

THIS IS @ PYTHON PROGRAMMING LANGUAGE.

Example 3: upper() Method Return Value

valStr='python programming LanguagE.' 
returnedValue=valStr.upper() 
print(returnedValue)

Output

PYTHON PROGRAMMING LANGUAGE.

We can see that Python string upper() method has returned a new string having all the alphabets converted to uppercase format.

Click here if you want to learn how to convert a string to lowercase format.

Conclusion

To conclude this tutorial, hope you now have a detailed practical understanding of how to properly use Python string upper method. I’d love to have your feedback on this post. Thank you for reading it.