iter — Easy Playground

Returns an iterator; makes the object usable in for loops

Python Playground

class Countdown:
    def __init__(self, start):
        self.start = start

    def __iter__(self):
        n = self.start
        while n > 0:
            yield n
            n -= 1

for num in Countdown(5):
    print(num)

Output

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__iter__ returns an iterator; makes the object usable in for loops. Implementing it lets you customize how Python interacts with your objects.

Challenge

Try modifying the code above to explore different behaviors. Can you extend the example to handle a new use case?

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__iter__ — Easy Playground

Challenge

iter — Easy Playground