e46b2 - enumerate with optional argument about python-workout HOT 3 OPEN

Ah, good catch! Yes, my plan was that it would work like the built-in enumerate, working just like enumerate does with a single argument, except that the index would start with whatever number you gave. So it should indeed start with 2 and a, rather than 2 and c. I'm not sure if it's a mistake in my implementation, or in what I showed.

I'm delighted that you're enjoying the book! If you have a few moments to write a review on Amazon.com (even a short one!), that would be super helpful and appreciated.

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This is how I implemented to have such a behavior:

class MyEnumerate_indexed:
    def __init__(self, data, start=0):
        self.data = data
        self.index = start

    def __iter__(self):
        return MyEnumerateIterator(self.data, self.index)


class MyEnumerateIterator:
    def __init__(self, data, start=0):
        self.data = data
        self.index = start
        # to keep track of the index
        self.init = start

    def __next__(self):
        if self.index >= len(self.data) + self.init:
            raise StopIteration
        value = (self.index, self.data[self.index - self.init])
        self.index += 1
        return value

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Yup, looks good!

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