Convert uppercase to lowercase in Python

Python String lower()

By using the built-in string lower() method, all the uppercase characters can be converted into lowercase characters in a string,

The lowercased string from the given string is returned by the lower() method.

Syntax :

string.lower()

Parameters:

It does not need any parameters.

Returns :

All the uppercase characters are converted into lowercase and, the lowercase string is returned.

Example 1:

string = "THIS IS JAVATPOINT"

print(string.lower())

# string with numbers

string = "Th!s I0 JAVA8POin8t!"

print(string.lower())

Output:

this is javatpoint

th!s i0 java8poin8t!

Example 2:

Using lower() in the Program

firstString = "TUTORIAL AND EXAMPLES!"

# second string

secondString = "TUtOrIaL AnD EXaMPlEs!"

if(firstString.lower() == secondString.lower()):

    print("The strings are same.")

else:

    print("The strings are not same.")

Output:

The strings are same.

Errors And Exceptions

1. There is no need to pass the parameter because it doesn't take any arguments. Hence, it returns an error.
2. Only the uppercase characters are converted to lowercase but the symbols and numbers are returned as it is.