Description

Level: Intermediate
Goal: Learn how to structure code efficiently, reuse components, and build modular programs.

Detailed Content

1. Why Functions Matter:
   The concept of reusable code and the “Don’t Repeat Yourself” principle.

2. Defining & Calling Functions:
   Creating your first def statements and calling them properly.

3. Parameters & Return Values:
   Passing data into functions and getting results back.

4. Variable Scope & Lifetime:
   Understanding local and global variables.

5. Default Arguments & Keyword Arguments:
   Flexible and readable function calls.

6. Lambda Functions:
   Compact anonymous functions for quick operations.

7. Working with Modules:
   How to import standard and custom modules to expand functionality.

8. Organizing Code:
   Structuring files, naming conventions, and documentation practices.

Skills Gained: Clean code habits, modular design, and reusable function logic.
Mini Project: Temperature Converter Tool — a modular Python app for Celsius/Fahrenheit conversions.