What is the difference between local and nonlocal variables?

Can you explain the difference between local and nonlocal variables?

Sure! Local variables are defined within a function and can only be accessed inside that function. Nonlocal variables, on the other hand, are defined in an enclosing scope and can be accessed in nested functions.

Can you give me an example of each?

Of course! In Python, a local variable might be defined inside a function like this: def my_function(): x = 10. A nonlocal variable can be used in a nested function like this: def outer_function(): y = 20; def inner_function(): nonlocal y; y += 1.

Why would I use nonlocal variables?

Nonlocal variables are useful when you want to modify a variable from an outer function within a nested function, allowing for better data encapsulation.

Are there any limitations to using nonlocal variables?

Yes, nonlocal variables can only be used in nested functions and cannot be accessed from the global scope. They also require careful management to avoid confusion.