What are some common errors when using collections in Python?

What are some common errors when using collections in Python?

Some common errors include using the wrong data type, modifying a collection while iterating, and index out of range.

Can you explain what happens when I modify a list while iterating over it?

Modifying a list while iterating can lead to unexpected behavior, such as skipping elements or encountering an IndexError.

How can I avoid these errors?

You can avoid these errors by creating a copy of the collection before iterating or using list comprehensions.

What about using sets? Are there common errors with them too?

Yes, common errors with sets include trying to add unhashable types and misunderstanding set operations like union and intersection.