Give users suggestions on how to resolve `Cannot find implementation or library stub for module named "{module}"`

Feature

Give users suggestions on how to resolve Cannot find implementation or library stub for module named "{module}".

Pitch

I'm new to the ecosystem and didn't know a command that would fix mypy failing is pip install numpy. I think a suggestion on how to resolve this issue would help out people who don't use Python regularly, like myself.

Current behavior

p.py:1: error: Cannot find implementation or library stub for module named "numpy"
p.py:1: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports

Desired behavior

p.py:1: error: Cannot find implementation or library stub for module named "numpy"
p.py:1: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports
p.py:1: note: The following command may help: pip install numpy

Commencez par le diagnostic de mypy pour Cannot find implementation or library stub for module named "{module}" et examinez la documentation existante sur les imports manquants, liée dans le message. Déterminez comment les suggestions telles que pip install numpy doivent être sélectionnées et affichées, puis vérifiez que le diagnostic inclut une commande utile sans modifier la sortie existante.