What is the Iterable Protocol in Python?

Can you explain what the Iterable Protocol is in Python?

Sure! The Iterable Protocol in Python allows an object to be iterable, meaning it can be used in a loop. It requires implementing the __iter__() method.

What does the __iter__() method do?

The __iter__() method returns an iterator object, which defines the __next__() method to fetch the next value in the iteration.

Can you give me an example of a custom iterable?

Absolutely! Here's a simple example: a class that represents a range of numbers. It implements __iter__() to return an iterator that yields numbers one by one.

What happens if I don't implement __iter__()?

If you don't implement __iter__(), your object won't be iterable, and trying to use it in a loop will raise a TypeError.