Mastering Python Functions: A Quick Guide for Beginners

A function in Python is a block of code that performs a specific task.. Define a function using the 'def' keyword followed by the function name and parentheses.. Call a function by writing its name followed by parentheses, optionally with arguments.. Parameters allow functions to accept input values, while return values provide output.. Built-in functions are pre-defined, while user-defined functions are created by the programmer.