[LAU] mididings Python woes; workaround or fix?

Mididings may be the only JACK-api MIDI router/filter tool around; if there is another I'd love to know about it.  On the other hand t was working just dandy until, I think, some changes to both Python3 and legacy support for Python2.  I was using its Python3 AUR adaptation (mididings-git) under Manjaro, but then after package upgrades, it began to fail at 'from mididings import *' (see below).  I found similar failures in Ubuntu 20, and found different failures in both when I tried setting up to use Python2 (which obviously we would rather not be doing).  The failure is similar to a number of failures reported starting with Python 3.10, so this may be related, but I was not able to figure out how to apply those workarounds to the mididings source, I tried several different variations, including a number of the different forks in github. Thoughts, anyone?  I found Pigiron and Jamrouter and puredata, but none of these appear to do JACK.  I'm using pipewire now, so I could theoretically revise the whole rig around ALSA MIDI, but all of the apps needing MIDI use JACK, and mididings is so elegant... J.E.B. |[jeb@newbnr ~]$ python Python 3.10.1 (main, Dec 18 2021, 23:53:45) [GCC 11.1.0] on linux Type "help", "copyright", "credits" or "license" for more information. >>> from mididings import * Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/lib/python3.10/site-packages/mididings-2.0.0+r26a40db-py3.10- linux-x86_64.egg/mididings/__init__.py", line 15, in <module> from mididings.engine import run, process_file File "/usr/lib/python3.10/site-packages/mididings-2.0.0+r26a40db-py3.10-linux-x86_64.egg/mididings/engine.py", line 15, in <module> import mididings.patch as _patch File "/usr/lib/python3.10/site-packages/mididings-2.0.0+r26a40db-py3.10- linux-x86_64.egg/mididings/patch.py", line 15, in <module> import mididings.units as _units File "/usr/lib/python3.10/site-packages/mididings-2.0.0+r26a40db-py3.10-linux-x86_64.egg/mididings/units/__init__.py", line 14, in <module> from mididings.units.engine import * File "/usr/lib/python3.10/site-packages/mididings-2.0.0+r26a40db-py3.10-linux-x86_64.egg/mididings/units/engine.py", line 55, in <module> def SceneSwitch(number=_constants.EVENT_PROGRAM): File "/usr/lib/python3.10/site-packages/mididings-2.0.0+r26a40db-py3.10-linux-x86_64.egg/mididings/unitrepr.py", line 46, in composed return arguments.accept(*constraints, **kwargs) (store(f)) File "/usr/lib/python3.10/site-packages/mididings-2.0.0+r26a40db-py3.10-linux-x86_64.egg/mididings/arguments.py", line 49, in __init__ self.constraints = [_make_constraint(c) for c in constraints] File "/usr/lib/python3.10/site-packages/mididings-2.0.0+r26a40db-py3.10-linux-x86_64.egg/mididings/arguments.py", line 49, in <listcomp> self.constraints = [_make_constraint(c) for c in constraints] File "/usr/lib/python3.10/site-packages/mididings-2.0.0+r26a40db-py3.10-linux-x86_64.egg/mididings/arguments.py", line 160, in _make_constraint elif isinstance(c, collections.Callable): AttributeError: module 'collections' has no attribute 'Callable' >>>|