eldoc-mode not working

[apresta]

eldoc-mode doesn't seem to work either in the shell or a source file, at least in my environment (Emacs 28.2, macOS 13.3.1, SageMath 9.8, Python 3.11.1).

This happens even with a minimal init file with just the following:

(require 'sage-shell-mode)
(add-hook 'sage-shell-mode-hook #'eldoc-mode)
(add-hook 'sage-shell:sage-mode-hook #'eldoc-mode)

Are other packages needed for it to work, or is it actually broken for everyone?