[issue7721] Code in xrange documentation does not work

[Florent Xicluna]

Florent Xicluna <laxyf at yahoo.fr> added the comment:

You will prefer this one. It is as fast as the 2.7 version.
The restrictions are described in the itertools documentation.


from itertools import count, takewhile
irange = lambda start, stop, step: takewhile(lambda x: x<stop, (start+i*step for i in count()))

>>> list(irange(-2**65,2**65,2**61))
[-36893488147419103232L, ...

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<http://bugs.python.org/issue7721>
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