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From: Ian Kelly <ian.g.kelly@gmail.com>
Date: Tue, 30 Oct 2012 01:32:44 -0600
Subject: Re: Negative array indicies and slice()
To: Python <python-list@python.org>
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On Mon, Oct 29, 2012 at 6:17 PM, Andrew Robinson
<andrew3@r3dsolutions.com> wrote:
> If you re-check my post to chris, I listed the struct you mention.
> The C code is what is actually run (by GDB breakpoint test) when a tuple is
> instantiated.

When you were running GDB, were you debugging the interactive
interpreter or a precompiled script?  The interactive interpreter does
a compilation step for every line entered.

> If the tuple were stripped of the extra data -- then it ought to be as small
> as slice().
> But it's not as small -- so either the sys.getsizeof() is lying -- or the
> struct you mention is not complete.

As just explained, the extra 16 bytes are added by the garbage collector.