python: 3.14 shows a new warning in the console upon traceback

[austin3dickey]

System details:

Positron and OS details:

Latest main

Session details:

Python 3.14.0rc3

Describe the issue:

The first time a traceback is displayed in the Console, it displays a SyntaxWarning:

/Users/austin/repos/positron/extensions/positron-python/python_files/lib/ipykernel/py3/IPython/core/interactiveshell.py:3112: SyntaxWarning: 'return' in a 'finally' block
  return result

This is because https://peps.python.org/pep-0765/ is newly flagging some code in the bundled ipykernel version 6.30.1. This was fixed in newer ipykernel versions (ipython/ipython@9ecd908).

Steps to reproduce the issue:

1. In Console: assert False

Expected or desired behavior:

No warning before the traceback

Were there any error messages in the UI, Output panel, or Developer Tools console?

[isabelizimm]

This was fixed in newer ipykernel versions (ipython/ipython@9ecd908).

Until we drop 3.9, we will not be able to pick up those newer versions, since support was dropped in ipython==8.19.0. That being said, it looks like that commit is in IPython 9.X, which actually is only for 3.11+ 😬. We may want to silence this error, since it is not actionable by the user at all.

[juliasilge]

Big picture this points out some challenges we have with our approach to bundling ipykernel, since one version of ipykernel may well not work for all the versions of Python we want to support. We should think through what the best thing to do in the long run is!

[austin3dickey]

We may want to silence this error, since it is not actionable by the user at all.

This sounds fine to me for now! It would be interesting to explore bundling different versions of ipykernel for different versions of Python, but maybe we can see if more issues like this come up first.