Change error messages for Python 3.11

[benjeffery]

Part of #2248
Our test suite passes with Python 3.11 if these small changes are applied.
However, we can't yet add it to CI as one of our test dependencies (lshmm) depends on numba which doesn't yet have 3.11 support. (see numba/numba#8304)

[codecov]

Codecov Report

Merging #2598 (7f77e9d) into main (a709954) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #2598   +/-   ##
=======================================
  Coverage   93.91%   93.91%           
=======================================
  Files          27       27           
  Lines       27200    27200           
  Branches     1215     1215           
=======================================
  Hits        25544    25544           
  Misses       1622     1622           
  Partials       34       34           

Flag	Coverage Δ
c-tests	92.24% <ø> (ø)
lwt-tests	89.05% <ø> (ø)
python-c-tests	73.14% <ø> (ø)
python-tests	98.95% <ø> (ø)

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[jeromekelleher]

Could just delete these strings? Probably sufficient to catch an AttributeError tbh.

[benjeffery]

Could just delete these strings? Probably sufficient to catch an AttributeError tbh.

Well one would hope that they aren't going to change again! I'm happy with the "or" clause.

[jeromekelleher]

People will wonder in 10 years time what the first strings were for 😉

[benjeffery]

Cool, I removed the matches.

[jeromekelleher]

Sorry, thought I'd approved already