Table of contents

1. Types of Functions
2. Creating a Function
• Creating a function without any parameters
• Creating a function with parameter s
• Creating a function with parameters and return value
3. Calling a function
• Calling a function of a module
4. Docstrings
• Single-Line Docstring
• Multi-Line Docstring
5. Return Value From a Function
6. Scope and Lifetime of Variable
7. Global Keyword in Function
8. Nonlocal Variable in Function
9. Python Function Arguments
• Positional Arguments
• Keyword Arguments
• Default Arguments
• Variable-length Arguments
10. Recursive Function

• Python Anonymous/Lambda Function
• filter() function in Python
• map() function in Python
• reduce() function in Python