bug#31405: 25.3; Python.el doesn't provide infos to info-lookup-symbol

[Eli Zaretskii]

> Cc: seb@k-7.ch, Stefan Kangas <stefan@marxist.se>,
>  Noam Postavsky <npostavs@gmail.com>, 31405@debbugs.gnu.org
> Date: Thu, 12 Aug 2021 16:13:34 +0100
> From:  "Basil L. Contovounesios" via "Bug reports for GNU Emacs,
>  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
> 
> > (info-lookup-maybe-add-help
> >  :mode 'python-mode
> >  :doc-spec '(("(python)Index")))
> >
> > to something that filters/matches more accurately, perhaps.
> 
> In my case I have to override it as
> 
>   (with-eval-after-load 'info-look
>     (info-lookup-add-help
>      :mode 'python-mode
>      :doc-spec '(("(python3.9)Index"))))
> 
> to match the name and version of the manual installed by Debian.

IMNSHO, it's a bug in Debian that they include the version in the file
name and don't provide any symlink or other way of getting the Python
Info manual.  That's not how the Info system was designed to work.