What are the common mistakes when using shallow copy in Python?

What are the common mistakes when using shallow copy in Python?

Common mistakes include not realizing that shallow copies do not create copies of nested objects, leading to unexpected behavior.

Can you give me an example of a shallow copy mistake?

Sure! If you have a list of lists and you use copy.copy(), modifying a nested list will affect the original list.

How can I avoid these mistakes?

To avoid these mistakes, use copy.deepcopy() for nested structures or be cautious when modifying nested objects after a shallow copy.

What are the performance implications of using deepcopy?

deepcopy can be slower than shallow copy because it recursively copies all objects, so use it only when necessary.