What are the differences between pass by value and pass by reference in Python?

What are the differences between pass by value and pass by reference in Python?

In Python, all arguments are passed by reference, but the behavior can seem like pass by value for immutable types.

Can you give me an example of pass by value?

Sure! When you pass an integer to a function, it behaves like pass by value because integers are immutable.

And what about pass by reference?

When you pass a list to a function, modifications to the list inside the function affect the original list, demonstrating pass by reference.

So, how can I check if a variable is mutable or immutable?

You can check if a variable is mutable by trying to change it. If it raises an error, it's immutable. For example, try modifying a tuple.