vscode-python causing silent dmypy failure

[connorads]

Problem

No mypy type hints 😢

Cause

Seems like the default settings for vscode-python is setting python.linting.mypyArgs with an arg of --follow-imports=silent which is not supported by dmypy (python/mypy#9475)

Workaround

Set "python.linting.mypyArgs": [], in user or workspace settings.json

Potential fix

Would a fix be to just stop reading the legacy args here?
Happy to try a PR if so 😉

My reasoning: Given these legacy args are being deprecated in favour of plugins like this one? And that maybe the change to dmypy (#53) now warrants this?

I'm fairly new to the Python world so I hope this makes some sense 😅

Demo

In defaultSettings.json we can see python.linting.mypyArgs with an arg of --follow-imports=silent

We can see that vscode-mypy now reads this setting

And when it passes the arg to dmypy we get a message to say it's not supported, and we do not get Daemon started

After using the workaround we can see Daemon started and a type error in the console

and in the editor

[karthiknadig]

Would a fix be to just stop reading the legacy args here?

Yes. And we are open for PRs on this.

[connorads]

Hey @karthiknadig, I've opened #107

[posita]

I don't think merely not reading the legacy args is the solution here. I'm still encountering this, and I don't have that setting. UPDATE: I think I misunderstood. The default for python.linting.mypyArgs is non-empty and it looks like this fix juuust missed the v2023.2.0 release.

(Ref: python/mypy#9475 for visibility.)