MacPorts borg is broken?

[Kenneth Wolcott]

Hi;

A script that I wrote which calls borg reported the following:
*******************
You do not have a supported version of the msgpack python package
installed. Terminating.
This should never happen as specific, supported versions are required
by our setup.py.
Do not contact borgbackup support about this.
*******************

 which borg
/opt/local/bin/borg

borg --version
borg 1.2.3

port installed | grep msgpack
  py310-msgpack @1.0.4_2
  py310-msgpack @1.0.5_0 (active)

port installed | grep borg
  borgbackup @1.2.3_0 (active)

  I

I was successfully using my backup script based on borg for several
months now (running it every time I go a local git commit), but
tonight it fails with the above error message.

I tried to fix this problem by uninstalling borg and reinstalling it,
but still get the same error.

I was using borg from homebrew last year, but I moved completely to
MacPorts for some while now.

I'd rather use MacPorts than going back to homebrew, or trying to
build from source (not sure if a compatible downloadable binary
exists).

Thanks,
Ken Wolcott