Python String lower() – Python Standard Library

Python String lower() – Python Standard Library

Python String lower()

The string lower() method converts all uppercase characters in a string into lowercase characters and returns it.

The syntax of lower() method is:

 string.lower()

String lower() Parameters()

The lower() method doesn’t take any parameters.


Return value from String lower()

The lower() method returns the lowercased string from the given string. It converts all uppercase characters to lowercase.

If no uppercase characters exist, it returns the original string.


Example 1: Convert a string to lowercase

 # example string string = "THIS SHOULD BE LOWERCASE!" print(string.lower()) # string with numbers # all alphabets whould be lowercase string = "Th!s Sh0uLd B3 L0w3rCas3!" print(string.lower()) 

When you run the program, the output will be:

 this should be lowercase! th!s sh0uld b3 l0w3rcas3! 

Example 2: How lower() is used in a program?

 # first string firstString = "PYTHON IS AWESOME!" # second string secondString = "PyThOn Is AwEsOmE!" if(firstString.lower() == secondString.lower()): print("The strings are same.") else: print("The strings are not same.") 

When you run the program, the output will be:

 The strings are same. 

Note: If you want to convert to uppercase string, use upper(). You can also use swapcase() to swap between lowercase to uppercase.

via Learn Programming: Tutorials and Examples from Programiz

March 31, 2019 at 08:50PM