Liu Hui [2024-02-20 12:46 +0800] wrote:

> On Mon, Feb 19, 2024 at 9:18 PM Basil L. Contovounesios
> <basil@contovou.net> wrote:
>>
>> BTW, I have been seeing an IPython test failure on GNU/Linux:
>> Any pointers?
>
> I cannot reproduce the problem with Python 3.12 and IPython 8.21. Can
> you check the results with the following steps? Thanks.

Thanks.  These all work as expected in 'emacs -Q', which made me realise
what may be the problem:

- the Emacs test suite runs under HOME=/nonexistent
- but PATH is unchanged
- I have the latest IPython installed locally using pipx:
  $ ls -l $(which ipython)
  lrwxrwxrwx 1 blc blc 53 Feb 20 11:46
    /home/blc/.local/bin/ipython ->
      /home/blc/.local/share/pipx/venvs/ipython/bin/ipython

This is confirmed by the following experiment: