What is the purpose of string formatting in Python?

The purpose of string formatting in Python is to embed variables or expressions within a string dynamically. This allows developers to create more readable and maintainable code by combining static text with dynamic data. For instance, you can combine string literals with variable values to generate messages or outputs that vary based on the values of those variables. This is particularly useful for creating templated text, such as user messages, reports, or formatted outputs, where the content needs to change while maintaining a consistent structure.

String formatting can be done in various ways in Python, including using f-strings (formatted string literals), the str.format() method, and the older % operator method. By embedding variables or expressions directly within the string, you enhance the versatility and interactivity of your programming, ensuring that the output adapts to the needs of your application or responds to user input effectively.