How to convert a string back to lowercase in Python

How to convert a string to uppercase in Python: 1. Use the upper() and swapcase() methods to convert the lowercase letters in the string to uppercase letters; 2. Use the capitalize() method to convert The first letter of the string becomes uppercase; 3. Use the title() method to change the first letter of each word in the string to uppercase.

The following methods are used to convert the string into lowercase and uppercase strings, change the first letter of the string to uppercase, and convert each string to uppercase. Methods to change the first letter to uppercase and uppercase and lowercase

These methods all generate new strings and do not make any modifications to the original string.

upper() method converts lowercase letters in a string to uppercase letters.

Syntax:

str.upper()

capitalize() changes the first letter of the string to uppercase and other letters to lowercase. For 8-bit bytes encoding needs to be based on the local environment.

Syntax:

str.capitalize()

swapcase() method is used to convert uppercase and lowercase letters of a string.

Syntax:

str.swapcase();

The title() method returns a "titled" string, which means that all words start with uppercase letters and the remaining letters are lowercase (see istitle()).

Grammar:

str.title();

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