graphics/gimp has Python support ON by default. This pulls in graphics/py-gimp which is a rather old port and requires Python 2.7 explicitly. From the Makefile for graphics/py-gimp:
DEPRECATED= Uses deprecated version of python
The Fedora community has a similar problem, just before their 32 release: https://bugzilla.redhat.com/show_bug.cgi?id=1737933
GIMP3 is in the making and it *should* default to Python3, however no info is available on the official Roadmap: https://wiki.gimp.org/wiki/Roadmap#GIMP_3.0
I can start tinkering with GIMP3 to see whether it's possible to re-use the current Makefile, but that would still provide a "gimp-devel" port at best.
The alternative would be to disable Python support in graphics/gimp so that the port continues building past its expiration date.
*** Bug 249696 has been marked as a duplicate of this bug. ***
@Andy do you have any updates on this or should we just remove the py-gimp plugin?
(In reply to Rene Ladan from comment #2)
I was hoping to get some feedback from the gnome@FreeBSD.org group, but since no one replied, I think this can be closed.
You can go ahead and remove the plugin. Thanks!
(In reply to Andy Mender from comment #3)
OK, I'll remove the plugin. Perhaps it can be re-added once it is upgraded to Python3.
Closing as OBE which seems to be the most suitable option.
A commit references this bug:
Date: Tue Sep 29 19:14:04 UTC 2020
New revision: 550610
graphics/gimp: remove optional dependency on expired py-gimp, bump PORTREVISION
Submitted by: Andy Mender