What is the difference between copy and deepcopy in Python?

What is the difference between copy and deepcopy in Python?

In Python, copy creates a shallow copy of an object, while deepcopy creates a new object and recursively adds copies of nested objects.

Can you give me an example of when to use deepcopy?

Sure! Use deepcopy when you want to copy an object that contains other mutable objects, like lists or dictionaries, to avoid changes in the original.

What happens if I use copy on a list of lists?

Using copy on a list of lists will create a new list, but the inner lists will still reference the same objects. Changes to the inner lists will affect both.

Is there a performance difference between copy and deepcopy?

Yes, deepcopy is generally slower than copy because it has to recursively copy all nested objects.