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

[Augusto Stoffel]

FWIW, the Info version of the Python manual doesn't look very good.  The
(only) reason being that Info doesn't let you write a plain hyperlink in
the middle of a sentence; rather it assumes that all hyperlinks are part
of the phrase “See [link target].”.

Since the Python manual wasn't written specifically for Texinfo, it has
lots of hyperlinks, and so will say things like "this function takes a
see string. as argument and return a see boolean."

I brought this up in [1], but unfortunately the Texinfo people seem to
like this limitation a lot.

By the way, this issue is what led me to write the devdocs [2] package.

[1] https://lists.gnu.org/archive/html/bug-texinfo/2021-05/msg00022.html
[2] https://elpa.gnu.org/packages/devdocs.html