[issue29327] SystemError or crash in sorted(iterable=

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

> While Python 3.5 doesn't crash, I consider that it has also the bug. So I
> added Python 3.5 in Versions.

The patch uses new feature of 3.6 -- supporting positional-only parameters in 
PyArg_ParseTupleAndKeywords()  (see issue26282). Since passing an iterable as 
a keyword argument never worked, it is safe to make the first parameter 
positional-only.

Actually I think that argument parsing code of sorted() and list.sort() can be 
simplified, but this is separate issue. I tried to make the bugfix patch simple.

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title: SystemError or crash in sorted(iterable=[]) -> SystemError or crash in sorted(iterable=

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue29327>
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