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Re: Timsort in Cpython

References <9ca984d5-19d9-4e82-a305-2a2f5ee341fe@googlegroups.com> <b3df2c76-b191-4cbb-9859-874b534a17e5@googlegroups.com>
From Ian Kelly <ian.g.kelly@gmail.com>
Date 2013-06-16 14:33 -0600
Subject Re: Timsort in Cpython
Newsgroups comp.lang.python
Message-ID <mailman.3459.1371415158.3114.python-list@python.org> (permalink)

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On Sat, Jun 15, 2013 at 10:05 PM,  <alphonse23@gmail.com> wrote:
> Yes I've read it. Very interesting read. There are other resources too online that make it very clear, for instance the wikipedia articles is pretty good.
>
> Though, if anyone would be interested in helping me out further -- though by all means, I'm not lazy, I can figure it myself. But, I wanted to pass in variables into listsort and watch timsort work line by line in gdb.
>
> listsort(PyListObject *self, PyObject *args, PyObject *kwds)
>
> I've never worked with Cpython source before, but it looks like PyObject is just some type of general strut.. I think anyway. How does python represent a list of ints in source? and what are the two second arguments for, assuming the first is the list strut.

A PyObject* generally references any Python object.  The subtype
PyListObject* more specifically references a Python list.  The above
signature corresponds to this Python function signature:

    def listsort(self, *args, **kwds):

The first argument self is the list object to be operated on.  The
second argument args is a Python tuple containing any other positional
arguments that were passed into the method.  The third argument kwds
is a Python dict containing any keyword arguments that were passed
into the method.

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Thread

Timsort in Cpython alphonse23@gmail.com - 2013-06-15 12:44 -0700
  Re: Timsort in Cpython Zachary Ware <zachary.ware+pylist@gmail.com> - 2013-06-15 14:55 -0500
  Re: Timsort in Cpython Robert Kern <robert.kern@gmail.com> - 2013-06-15 21:00 +0100
  Re: Timsort in Cpython alphonse23@gmail.com - 2013-06-15 13:21 -0700
    Re: Timsort in Cpython Robert Kern <robert.kern@gmail.com> - 2013-06-15 21:55 +0100
      Re: Timsort in Cpython alphonse23@gmail.com - 2013-06-15 14:43 -0700
    Re: Timsort in Cpython Terry Reedy <tjreedy@udel.edu> - 2013-06-15 22:56 -0400
  Re: Timsort in Cpython alphonse23@gmail.com - 2013-06-15 21:05 -0700
    Re: Timsort in Cpython mm0fmf <none@mailinator.com> - 2013-06-16 14:08 +0100
      Re: Timsort in Cpython alphonse23@gmail.com - 2013-06-16 09:15 -0700
        Re: Timsort in Cpython Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-06-16 16:16 -0400
          Re: Timsort in Cpython sean.westfall@gmail.com - 2013-06-19 10:10 -0700
    Re: Timsort in Cpython Ian Kelly <ian.g.kelly@gmail.com> - 2013-06-16 14:33 -0600
      Re: Timsort in Cpython sean.westfall@gmail.com - 2013-06-19 10:18 -0700
        Re: Timsort in Cpython Ian Kelly <ian.g.kelly@gmail.com> - 2013-06-19 12:20 -0600

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