From: Tom Lane <tgl@sss.pgh.pa.us>
To: RAJAMOHAN <garajamohan@gmail.com>
cc: Holger Jakobs <holger@jakobs.com>, pgsql-admin@lists.postgresql.org
Subject: Re: could not load library "$libdir/plpython2" while upgrading from
 postgresql-10 to 12
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Comments: In-reply-to RAJAMOHAN <garajamohan@gmail.com>
	message dated "Sun, 07 Mar 2021 12:31:40 +0530"
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RAJAMOHAN <garajamohan@gmail.com> writes:
> But the issue is still occurring for me, even though I dropped the
> *plpython2u* extension and functions which were using the it.

Look through pg_proc for entries mentioning plpython2 in probin, ie

select proname from pg_proc where probin like '%plpython2%';

Another possibility is that you added plpython2 to shared_preload_libraries
or one of its sibling settings.

			regards, tom lane