2.3: Master Python Functions in 15 Minutes | Reusable Code Tutorial | Complete Beginner Guide 2025

Описание: In this Python functions tutorial, you'll discover how to create custom functions, understand the difference between parameters vs arguments, implement return statements, use multiple return values, work with lambda functions, and apply function best practices. We cover function syntax, naming conventions, docstrings, positional arguments, keyword arguments, default values, variable-length arguments, recursion basics, and function scope (local vs global variables). Learn how professional developers write modular, reusable code that saves time and reduces bugs. Includes hands-on examples like calculator functions, string manipulation, list processing, and real-world applications. This tutorial follows Python 3.12 standards and includes tips for writing Pythonic code that passes code reviews.