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From: "Ludovic Courtès" <ludo@gnu.org>
To: Lars-Dominik Braun <lars@6xq.net>
Cc: "Jakub Kądziołka" <kuba@kadziolka.net>, guix-devel@gnu.org
Subject: Re: [Python] pypy3 integration
Date: Mon, 27 Jul 2020 12:48:31 +0200	[thread overview]
Message-ID: <878sf5z11c.fsf@gnu.org> (raw)
In-Reply-To: <20200722064657.GA1350@noor.fritz.box> (Lars-Dominik Braun's message of "Wed, 22 Jul 2020 08:46:57 +0200")

Hello,

Lars-Dominik Braun <lars@6xq.net> skribis:

>> pypy3 works somewhat well for me already in this regard:
> indeed, you’re right.
>
> This will probably break for some packages, because python provides
> Python 3.8 whereas pypy3 provides Python 3.6.  (They’ve always lagged
> behind and given that we’re going towards 3.10, well…) One example are
> packages depending on importlib.resources, which only became available
> with Python 3.7. Unfortunately this includes the widely-used pytest (or
> rather: its dependency python-pluggy).
>
> Also Python’s C ABI is not stable[1] and thus extensions compiled for 3.8
> can fail in unpredictable ways with 3.6. And looking at python-numpy,
> it seems they won’t even load.

Also, what about .pyc files?  Does pypy create compatible .pyc files?

> So, does this justify creating pypy3-* packages?

It probably does.  But do we want to mirror all the ‘python-’ packages,
or just some of them?  It seems overkill to mirror all of them.

Perhaps we could have a package transformation option to turn a
‘python-build-system’ package into a pypy package?

Thanks,
Ludo’, who knows little about Python.


  parent reply	other threads:[~2020-07-27 10:48 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-19  8:27 [Python] pypy3 integration Lars-Dominik Braun
2020-07-20 11:17 ` zimoun
2020-07-20 19:16   ` Lars-Dominik Braun
2020-07-20 19:42 ` Jakub Kądziołka
2020-07-22  6:46   ` Lars-Dominik Braun
2020-07-22 10:39     ` zimoun
2020-07-27 10:48     ` Ludovic Courtès [this message]
2020-07-27 19:15       ` zimoun
2020-08-01  8:23         ` Lars-Dominik Braun
2020-07-22 10:34   ` zimoun

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