Horton

Re: Time to drop plpython2?

Andres Freund <andres@anarazel.de>

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From: Andres Freund <andres@anarazel.de>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Peter Eisentraut <peter.eisentraut@enterprisedb.com>, pgsql-hackers@postgresql.org
Date: 2021-11-15T20:00:19Z
Lists: pgsql-hackers 
Hi,

Continuing the discussion from https://www.postgresql.org/message-id/2146739.1637004415%40sss.pgh.pa.us

On 2021-11-15 14:26:55 -0500, Tom Lane wrote:
> * Meson only promises support back to python 3.6, but if that's
> accurate it's going to be a problem for us, because there are lots
> of live LTS distributions with older python3 (RHEL7, Solaris 11.3,
> AIX 7.2 for starters).  I've been planning to do some testing and
> see if meson will run under python 3.4 or 3.5.

Slightly older versions, which do work to build postgres with the proposed
patchset, run on python3 3.5. I don't think it's likely we could make the
versions that only required 3.4 work reasonably.


Is RHEL7 really an issue? I only have Centos 7 around, but that has python
3.6.

I don't know much about AIX, but according to https://repology.org/project/python/versions
the AIX toolbox has 3.7.11. I don't know enough about AIX to know whether
there's other sources of python3, bison, etc that are common. On the AIX
system I have access to they all seem to be symlinked to /opt/freeware, which
I understand is that toolbox stuff?

Greetings,

Andres Freund

Commits

  1. plpython: add missing plpython.h include to plpy_plpymodule.h

  2. plpython: Adjust docs after removal of Python 2 support.

  3. plpython: Code cleanup related to removal of Python 2 support.

  4. plpython: Remove regression test infrastructure for Python 2.

  5. plpython: Remove plpythonu, plpython2u and associated transform extensions.

  6. plpython: Reject Python 2 during build configuration.

  7. Add traceback information to PL/Python errors