How do I create an iterator in Python?

How do I create an iterator in Python?

To create an iterator in Python, you need to define a class with the __iter__() and __next__() methods.

Can you show me a simple example?

Sure! Here's a basic example:

class MyIterator:
    def __init__(self):
        self.current = 0
        self.limit = 5

    def __iter__(self):
        return self

    def __next__(self):
        if self.current < self.limit:
            self.current += 1
            return self.current - 1
        else:
            raise StopIteration

What does the StopIteration exception do?

The StopIteration exception signals that there are no more items to return from the iterator, ending the iteration.