bug#71314: [PATCH] info-lookup-symbol does not work in python-mode

[James Thomas]

- Make sure python info docs are installed (in Debian-derivatives, 'sudo
  apt install python3-doc')
- emacs -Q
- Open a buffer test.py and type: print
- C-h S fails, even after typing RET, but...

- Then do info-lookup-reset, and the previous step works.

Here's a possible patch, which hasn't been tested as much as needed:

0001-Check-for-doc-spec-function-early--in-interactive.patch
Description: [PATCH] Check for doc-spec-function early, in interactive

--