How does variable scope work in Python?

Can you explain how variable scope works in Python?

Sure! In Python, variable scope refers to the region of the program where a variable is accessible. There are four main scopes: local, enclosing, global, and built-in.

What is a local variable?

A local variable is defined within a function and can only be accessed inside that function. Once the function exits, the local variable is destroyed.

What about global variables?

Global variables are defined outside of any function and can be accessed from anywhere in the code, including inside functions.

Can you give an example of variable scope in action?

Certainly! Here's a simple example:

x = 10  # Global variable

def my_function():
    y = 5  # Local variable
    print(x + y)  # Accessing global variable

my_function()  # Outputs: 15
print(y)  # This will raise an error because y is not accessible here.