Can / should importing a constant string from an untyped library infer the type?

[davetapley]

I'm using the Falcon package which does not have types (yet falconry/falcon#1820).

Accordingly I'm adding my own .pyi as I go, but I just came upon a weird case.

Falcon has a constants module which has e.g.:

MEDIA_JSON = 'application/json'
MEDIA_TEXT = 'text/plain; charset=utf-8'

and I can import like this:

from falcon.constants import MEDIA_JSON, MEDIA_TEXT

But VSCode is still reporting (import) MEDIA_JSON: Unknown.

Can it really not even infer the type of that without a hint?
I can add to my .pyi, but it seems crazy that it couldn't even infer that? 🤔

[erictraut]

Can you describe your configuration in more detail? Is the from falcon.constants... statement located in a ".py" file within your project, or are you trying to import (and then re-export) these symbols from one of your ".pyi" files?

If I install the falcon library and then create a "dummy.py" file and paste in your import statement, here's what I see for the type inference: