Function Scoping in Python

In Python, the concept of function scoping refers to the visibility and accessibility of variables within a function. Understanding how scoping works is crucial for writing clean and bug-free code. Python follows the LEGB (Local, Enclosing, Global, and Built-in) rule to resolve variable names in different scopes.
Let's delve into each scope and understand how they work:
Local variables are declared inside a function and are only accessible within that function. They are created when the function is called and destroyed when the function exits.
Enclosing scope refers to the scope of the containing function when a function is nested within another function. Variables defined in the enclosing scope are accessible within the nested function.
Global variables are declared outside of any function and are accessible throughout the entire program. Modifying a global variable inside a function requires using the global keyword.
Built-in scope includes names such as print(), len(), and other built-in functions provided by Python.
Understanding function scoping in Python is essential for writing modular and maintainable code. It helps prevent unintended variable modifications and ensures that functions are encapsulated and reusable.
ChatGPT