Course Content

Intermediate Python Techniques

1. Mastering Packing and Unpacking in Python

Unpacking in Python: Extracting Values from Lists and Tuples Packing in Python: Grouping Multiple Values into a Single Variable Using Packing and Unpacking for Efficient Code in Python Challenge: Mastering Dictionary Unpacking in Python Challenge: The Champions League

2. Mastering Function Arguments in Python

Python Function Arguments: Overview of Parameters and Arguments Using *args in Python: Handling Variable-Length Positional Arguments Challenge: Calculating the Average Mark with *args Using **kwargs in Python: Flexible Keyword Arguments for Dynamic Functions Challenge: Mastering **kwargs in Python Functions

3. Function as an Argument in Python

High-Order Functions in Python: Passing Functions as Arguments Lambda Functions in Python: Writing Concise and Anonymous Functions Using Python Built-in Functions

4. Understanding Variable Scope in Python

Global Variables in Python: Accessing and Modifying Global Data Local Variables in Python: Understanding Function-Level Scope Challenge: Modifying a Global Variable in Python Nested Functions in Python: Scope and Accessibility Nonlocal Variables in Python: Working with Enclosed Scopes Python Closures: Retaining State in Nested Functions Challenge: Implementing a Threshold Checker with Closures

5. Mastering Python Decorators

Introduction to Python Decorators Python Decorator Syntax: Writing and Applying Decorators Challenge: Create Your First Python Decorator Using Decorators with Parameters in Python Chaining Multiple Decorators: Advanced Function Modifications Challenge: Basic Smores Recipe Practical Examples of Python Decorator Usage in Real Applications

Nested Functions in Python: Scope and Accessibility

This topic will not only help understand the nonlocal scope but also closures and decorators.

Functions are first-class citizens in Python. They can be:

Passed as arguments to functions;
Returned from functions;
Modified;
Assigned to variables.

Let's explore some examples:

def outer_function(...):
	...
    def inner_function(...):
		...
	return ...

In programming, a nested function is a function that is defined inside another function.


              123456
            
def count_percent(num1, num2, num3):
	def inner(num):
		return num * 30 / 100
	return (inner(num1), inner(num2), inner(num3))

print(count_percent(700, 300, 1000))

Useful if you want to perform a complex task multiple times within another function without repeating code.

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Section 4. Chapter 4

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