[docs] [issue30738] __next__() method in iterators 9.9

[Hiba]

New submission from Hiba:

class Reverse:
    """Iterator for looping over a sequence backwards."""
    def __init__(self, data):
        self.data = data
        self.index = len(data)

    def __iter__(self):
        return self

    def next(self):
        if self.index == 0:
            raise StopIteration
        self.index = self.index - 1
        return self.data[self.index]


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The next() method in the above code snippet(from 9.9 Iterators section in Tutorial is not correctly overridden. It's missing the underscores.

----------
assignee: docs at python
components: Documentation
messages: 296646
nosy: docs at python, hiba
priority: normal
severity: normal
status: open
title: __next__() method in iterators 9.9
versions: Python 2.7

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue30738>
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