[issue6305] islice doesn't accept large stop values
Alok Singhal
report at bugs.python.org
Sun Jun 22 17:48:03 CEST 2014
Alok Singhal added the comment:
Hi Raymond, Martin,
I won't feel bad about this patch not making it into the final Python distribution. I worked on this bug because it was the only "core C" bug at PyCon US sprints for CPython. I learned a bit more about CPython while working on it and I don't consider the time I spent on this bug as wasted.
Other than symmetry arguments, I can't think of any other argument for islice to accept large values.
a = []
a[sys.maxsize+2:] # gives: []
islice(a, None, sys.maxsize+2) # raises exception
But because islice has to go through the elements of the iterable from the current value to "start", while the first example doesn't, I don't think the symmetry argument is that strong here.
So, I think it's fine if we close this bug without accepting this patch.
Thanks for your time in reviewing it!
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<http://bugs.python.org/issue6305>
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