Python Variable Scope Explained | Local, Global, Enclosing & Built-in Scope Made Easy

Welcome to this comprehensive tutorial on Python Variable Scope!

In this video, we will dive deep into one of the most important concepts every Python developer must master — Variable Scope. Understanding how Python handles variables at different levels of code is crucial for writing bug-free and optimized programs.

We will explore the four types of variable scopes in Python:

✅ Local Scope – Variables declared inside a function.
✅ Global Scope – Variables declared outside of all functions.
✅ Enclosing Scope – Variables in the local scope of enclosing functions (nested functions).
✅ Built-in Scope – Names preassigned in the Python interpreter.

You'll also learn about the LEGB Rule — which defines the order in which Python searches for variable names.

📚 In This Video You Will Learn:
- What is Variable Scope?
- Why Variable Scope Matters
- How Local, Global, Enclosing, and Built-in Scopes Work
- How to modify global variables inside functions
- How Nested Functions use Enclosing Scope
- Practical Real-World Examples
- Common mistakes related to variable scope and how to avoid them

🔥 Who Should Watch This Video?
- Python Beginners
- Programmers preparing for coding interviews
- Anyone who wants to improve their understanding of Python internals

By the end of this tutorial, you will clearly understand how Python treats variables and how scope affects your code execution!

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Thanks for watching! Happy coding!

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