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Date: Wed, 3 Apr 2013 19:02:12 +1100
Subject: Re: Performance of int/long in Python 3
From: Chris Angelico <rosuav@gmail.com>
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On Wed, Apr 3, 2013 at 6:53 PM, Steven D'Aprano
<steve+comp.lang.python@pearwood.info> wrote:
> Here's another way:
>
>
> (sys.getsizeof(s) - sys.getsizeof(''))/len(s)
>
> should work.

Hmm, I had been under the impression that there was a certain "base
length" below which strings all had the same size. Yes, that also
works; though again, it's something that can be directly queried, at
the C level.

> There's probably also a way to do it using ctypes.
>
>> The system already knows what the size is, I was hoping for an
>> uber-quick inspection of the string header.
>
> I'm not sure that I would want strings to have a method reporting this,
> but it might be nice to have a function in the inspect module to do so.

Yeah, that's why I also looked in 'sys'; 'inspect' might well be a
good place for it, too. But it seems such a function doesn't exist,
which is what I was asking.

ChrisA