Re: Switching PL/Python to Python 3 by default in PostgreSQL 12

On 2019-07-06 21:02, Steven Pousty wrote:
> /" The default will probably be changed to Python 3 in a distant future
> release of PostgreSQL, depending on the progress of the migration to
> Python 3 in the Python community."/
>
> I know we are late in the Postgresql 12 cycle but I think switching the
> default to Python 3 is warranted given:

"The default" in the above statement refers to what version the language
name "plpythonu" invokes.  That is separate from whether an installer or
packager chooses to install a Python-2-based version.  I expect that as
operating systems remove Python 2 from their systems, packagers will
also remove Python-2-based plpython packages.  So there is no issue.

We could change plpythonu to be an alias for plpython3u instead of
plpython2u, but that would be a PG13 (or later) change.  I notice that
PEP-394 now supports this.

-- 
Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services