How to Convert a String to Lowercase in Python

There are various ways to Lowercase a string in Python but here we are using some generally used methods to convert a string to lowercase:

• Using lower() Function
• Using map() with Lambda Function in lower() Method
• Using List Join with lower() Method
• Using map and str.lower with lower() Method
• Using Swapcase() Function 
• Using casefold() Function

Convert string to lower case using lower() method

Let’s see two different cases of using the lower() method.

• Strings with Alphabetic Characters
• Strings with Alphanumeric Characters

String With Alphabetic Characters 

In this example, code initializes a string variable ‘text’ with the value ‘GeEks FOR geeKS’, then prints the original string. It subsequently converts the string to lowercase using the `lower()` function and prints the result, demonstrating the case transformation.

Output: 

Original String:
GeEks FOR geeKS
Converted String:
geeks for geeks

String with alphanumeric characters

In this example, the String with Alphanumeric Characters and code defines a string variable ‘text’ with a mixed case. It then prints the original string and, in the next section, prints the string converted to lowercase using the lower() function.

Output: 

Original String:
G3Ek5 F0R gE3K5
Converted String:
g3ek5 f0r ge3k5

Python string lower() method converts all letters of a string to lowercase. If no uppercase characters exist, it returns the original string.

Example:

Output

convert all to lowercase