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[Python-ideas] Pass a function as the argument "step" of range()

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On Sat, Jul 4, 2015 at 10:17 AM, Nick Coghlan <ncoghlan at gmail.com> wrote:>> Also, I think 'numbers' should be narrowed to 'integers' (or whatever is>> actually accepted).  The idea of allowing floats has been proposed at least>> once, probably more, and rejected.>> Unfortunately, we don't have a great word for "implements __index__", as> "integer" at least arguably implies specifically "int".I'm not sure that actually matters - even if the parameters can be anyobjects that implement __index__, the range still represents asequence of ints:>>> class X:...  def __index__(self): return 4...>>> range(X())range(0, 4)>>> list(range(X()))[0, 1, 2, 3]>>> [type(n) for n in range(X())][<class 'int'>, <class 'int'>, <class 'int'>, <class 'int'>]Saying "sequence of integers" seems fine to me.ChrisA

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