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[Python-ideas] Contraction for "for x in range()"

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Make some shim object that you can index into to get that functionality,could even call it Z (for the set of all integers). Short, and requires nonew syntax.class IndexableRange:    def __getitem__(self, item):        if isinstance(item, slice):            start = item.start if item.start is not None else 0            step = item.step if item.step is not None else 1            if item.stop is None:                return itertools.count(start, step)            else:                return range(start, item.stop, step)        else:            return itemZ = IndexableRange()for y in Z[0:10:2]:    print(y)On Tue, Feb 14, 2017 at 5:22 PM, Mikhail V <mikhailwas at gmail.com> wrote:>> On 14 February 2017 at 22:41, MRAB <python at mrabarnett.plus.com> wrote:>>> On 2017-02-14 21:09, Zachary Ware wrote:>>>>> On Tue, Feb 14, 2017 at 3:06 PM, Mikhail V <mikhailwas at gmail.com> wrote:>>>>>>> I have a small syntax idea.>>>> In short, contraction of>>>>>>>> for x in range(a,b,c) :>>>>>>>> to>>>>>>>> for x in a,b,c :>>>>>>>> I really think there is something cute in it.>>>> So like a shortcut for range() which works only in for-in statement.>>>> So from syntactical POV, do you find it nice syntax?>>>> Visually it seems to me less bulky than range().>>>>>>>> Example:>>>>>>>> for x in 0,5 :>>>>     print (x)>>>>     for y in 0,10,2 :>>>>         print (y)>>>>         for z in 0, y+8 :>>>>             print (z)>>>>>>>>>> This is already valid and useful syntax, and thus a non-starter.>>>>>>>>>>>> The closest you could get without breaking existing code is [a:b:c]:>>>> for x in [0:5]:>>     print(x)>>     for y in [0:10:2]:>>         print(y)>>         for z in [0:y+8]:>>             print(z)>>>> What's more, that could be valid outside the 'for' loop too.>>>>> This looks really good, at first glance I would even expect this will> work,> comes so common from lists and numpy index ranges.>>> _______________________________________________> Python-ideas mailing list>Python-ideas at python.org>https://mail.python.org/mailman/listinfo/python-ideas> Code of Conduct:http://python.org/psf/codeofconduct/>-------------- next part --------------An HTML attachment was scrubbed...URL: <http://mail.python.org/pipermail/python-ideas/attachments/20170214/3309fbdd/attachment-0001.html>

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