What is variable shadowing in Python?

What is variable shadowing in Python?

Variable shadowing occurs when a variable in a local scope has the same name as a variable in an outer scope.

Can you give me an example of variable shadowing?

Sure! Here's a simple example:

x = 10  # Outer variable

def my_function():
    x = 5  # Inner variable shadows the outer variable
    print(x)

my_function()  # This will print 5
print(x)  # This will print 10

What happens if I change the inner variable?

If you change the inner variable, it will only affect the local scope. The outer variable remains unchanged.

Are there any best practices to avoid variable shadowing?

Yes, it's best to use unique variable names in different scopes to avoid confusion and potential bugs.