Collections are not usable

[felixSchl]

Expected behavior

I expected to be able to iterate over collections w/o running into type errors, however I am seeing this:

The problem is that the collection type is declared as a union as opposed to an intersection type. It's a bit more obvious in this error message:

I am new to mypy but from a bit of research it doesn't appear like they support intersection types just yet, but I played around with it and the desired type can be achieved by doing e.g.:

class ObjectCollection(
    typing.Sequence[bpy.types.Object],
    typing.Mapping[str, bpy.types.Object],
    # HOWEVER, cannot enable these due to incompatible .items() declarations
    # bpy.types.SceneObjects,
    # bpy.types.bpy_prop_collection
):
    pass

objects: ObjectCollection = ...
o = objects.get("foo")

So I am not sure what's the best approach but it looks like we'd have to generate class stubs based off all the things that go into the union and resolve mismatches...

[nutti]

@felixSchl

This relates to #97 . Current analysis algorithm does not support this kind of types. I think this should be fixed.

[nutti]

I applied @MicaelJarniac 's suggestion. Now, this issue is solved.