What is a Python iterator?

Can you explain what a Python iterator is?

Sure! A Python iterator is an object that allows you to traverse through a collection, like a list or a tuple, one element at a time.

How does an iterator differ from a list?

A list is a collection of items that you can access by index, while an iterator provides a way to access items sequentially without needing to know their indices.

Can you give me an example of how to create an iterator?

Absolutely! You can create an iterator using the iter() function on a list. For example: my_list = [1, 2, 3]; my_iter = iter(my_list).

What methods do iterators have?

Iterators have two main methods: __iter__() which returns the iterator object itself, and __next__() which returns the next item from the collection.