Python - Modifying Strings

Learn how to modify strings in Python using built-in methods. Discover how the upper() method converts a string to uppercase letters. Check out the example to see how it transforms the text.

Python - Modify Strings

Python provides several built-in methods that you can use to modify strings.

Upper Case

The upper() method converts a string to upper case letters:

a = "hello, everyone!"
print(a.upper())
      

HELLO, EVERYONE
              

Lower Case

The lower() method converts a string to lower case letters:

      a = "HELLO, EVERYONE!"
      print(a.lower())
      

      hello, everyone!
              

Remove Whitespace

Whitespace is the space before and/or after the actual text, and very often you want to remove this space.

The strip() method removes any whitespace from the beginning or the end of a string:

a = "  Hello, Everyone!  "
print(a.strip())

"Hello, Everyone!"

Replace String

The replace() method replaces a specified substring with another substring:

a = "Hello, Everyone!"
print(a.replace("H", "G"))
      

Gello, Everyone!
      

Split String

The split() method splits a string into a list of substrings based on a specified separator:

a = "Hello, Everyone!"
print(a.split(","))

'Hello', ' Everyone!'