What are the differences between Python iterators and collections?

What are the differences between Python iterators and collections?

Python iterators are objects that allow you to traverse through a collection, while collections are data structures like lists, tuples, and dictionaries that store multiple items.

Can you give me an example of an iterator?

Sure! A simple example of an iterator is a list in Python. You can use the iter() function to create an iterator from a list and then use next() to access its elements one by one.

How do I create a custom iterator?

To create a custom iterator, you need to define a class with __iter__() and __next__() methods. This allows your class to be iterable.

What are some common collections in Python?

Common collections in Python include lists, tuples, sets, and dictionaries. Each has its own use cases and properties.