[Python-Dev] Intention to accept PEP 552 soon (deterministic pyc files)

Brett Cannon brett at python.org
Mon Oct 9 13:02:30 EDT 2017

On Wed, Oct 4, 2017, 09:00 Antoine Pitrou, <solipsis at pitrou.net> wrote:

> On Wed, 4 Oct 2017 10:14:22 -0400
> Barry Warsaw <barry at python.org> wrote:
> > On Oct 3, 2017, at 13:29, Benjamin Peterson <benjamin at python.org> wrote:
> >
> > > I'm not sure turning the implementation details of our internal formats
> > > into APIs is the way to go.
> >
> > I still think an API in the stdlib would be useful and appropriate, but
> it’s not like this couldn’t be done as a 3rd party module.
> It can also be an implementation-specific API for which we don't
> guarantee anything in the future.  The consenting adults rule would
> apply.

I've toyed with the idea of coming up with an API for bytecode files, but
having lived through the last file format change I could never come up with
one that didn't just chop off the header or would be a maintenance burden.
But having an API that followed just what was in that Python release like
the ast module would solve that problem. Then 3rd-party code could wrap it
it smooth out differences between versions.


> Regards
> Antoine.
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