False positives with Pylance in VS Code

[pm-gusmano]

As I used this package, it seemed like the code's documentation was inconsistent with its API. I've developed a minimal example based on my use case:

# Shows error in pylance type analysis

from periodictable import elements

# If `type: ignore` is removed, pylance throws an error when it shouldn't.
print(elements.symbol('Fe').mass) # type: ignore

This code works fine, but it throws an error in pylance. A fix would be great, but if there was at least some indication of this behavior in the documentation, that would be really helpful.

[pkienzle]

I'm doing some funky "lazy-loading" of attributes, so I'm not surprised pylance is having problems.

I don't know enough about pylance to get this to work properly.

Are there any hints from the pylance error messages about why it is failing?

[pkienzle]

One solution is to create a .pyi file for core with all of the types defined statically. I would rather not do this since it will be difficult to keep it in sync with any changes to the definition. Maybe the .pyi file could be autogenerated?