What are some examples of iterator methods in Python?

What are some examples of iterator methods in Python?

In Python, common iterator methods include __iter__(), __next__(), and built-in functions like iter() and next(). Would you like to see examples?

Yes, please provide examples for each of those methods.

Sure! For __iter__(), it returns the iterator object itself. For __next__(), it returns the next value from the iterator. Here's a simple 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
        else:
            raise StopIteration

my_iter = MyIterator()
for num in my_iter:
    print(num)

This will print numbers from 1 to 5.

That's a great example! Can you explain how iter() and next() work?

Absolutely! The iter() function takes an iterable (like a list) and returns an iterator. The next() function retrieves the next item from the iterator. Here's an example:

my_list = [1, 2, 3]
my_iter = iter(my_list)

print(next(my_iter))  # Outputs: 1
print(next(my_iter))  # Outputs: 2

This will print the first two elements of the list.