Python 3.12 support

[nijel]

Is Python 3.12 supported or are there some known issues? I see the CI tests are not executed with Python 3.12, so it might be useful to add.

I'm asking because our code using on pyparsing is failing on Python 3.12 (see translate/translate#5071). It might be as well bug on our side, but before digging into that, I'd like to know whether it is expected to work or not.

[ptmcg]

My expectation is that pyparsing should be compatible with Python 3.12. I'm not aware of any breaking changes in 3.12 that would affect pyparsing. Nor am I aware of any changes in 3.12 that would change how pyparsing performs its parsing and returns the constructed ParseResults.

Can you distill this down to a smaller repro case?

I do include 3.12 in the list of versions in tox.ini, and in the list of classifiers in pyproject.toml. Can you show me where the CI tests don't run 3.12, so I can make the necessary changes to add it?

[nijel]

Yes, I will get to it later this week. I just wanted to make sure I'm not figuring out a known issue in case there is one 😄.

[nijel]

Okay, our test failure turns out to be unrelated to pyparsing, I apologize for the confusion. Somehow a general bug was triggered only in code-path which is the only one using pyparsing, so I was looking for a problem here…