Strange range

Random832 random832 at fastmail.com
Fri Apr 1 10:39:45 EDT 2016


On Fri, Apr 1, 2016, at 10:12, Marko Rauhamaa wrote:
> Yes, I realize it now. I had thought it was:
> 
>     def range(start, end=None, step=1):
>         if end is None:
>             start, end = 0, start
>         i = start
>         while step * (end - i) > 0:
>             yield i
>             i += step

You know the other funny thing? Even people who understand this about
Python 3 ranges, many assume that python 2 xrange was more similar to
your latter example (possibly caused by the fact that python 2 had other
things such as dict.iteritems which _were_ mere iterators)



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