Graphene-django: Expected type 'GraphQLObjectType', got 'Type[Query]' instead

[koddr]

Hello.

Django 2.0.7, Python 3.6.1

I get some strange warning at PyCharm 2018.2:

Expected type 'GraphQLObjectType', got 'Type[Query]' instead ...

Inspection info: This inspection detects type errors in function call expressions. Due to dynamic dispatch and duck typing, this is possible in a limited but useful number of cases. Types of function parameters can be specified in docstrings or in Python 3 function annotations.

But everything is working great!

# core/schema.py

import graphene
from projects.schema import Query as ProjectQuery

class Query(ProjectQuery, graphene.ObjectType):
    pass

schema = graphene.Schema(query=Query)

# projects/schema.py

import graphene
from graphene_django.types import DjangoObjectType
from .models import Project

class ProjectType(DjangoObjectType):
    class Meta:
        model = Project
        interfaces = (graphene.Node,)

class Query(graphene.ObjectType):
    all_projects = graphene.List(ProjectType)

    def resolve_all_projects(self, info, **kwargs):
        return Project.objects.all()

What's wrong? How to solve it?
Thanks!

[jayhale]

Does the code still run? I.e., is this just an error in the way the IDE is checking types?

What is the construction of ProjectQuery?

[MewX]

@jayhale the codes still run, and yes, it is just a warning message from PyCharm.

P.S. problem still exists in the latest PyCharm 2018.2

[koddr]

PyCharm 2018.3.5 is here, but this warning is still here too...

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[csjy]

2019.3 still has this warning issue.
schema = graphene.Schema(query=Query, mutation=Mutation)
Expected type 'ObjectType', got 'Type[Query]' instead
Strange enough only Query does it, the Mutation type is ok.

The types:
class Query(graphene.ObjectType):
actor = graphene.Field(ActorType, id=graphene.Int())
movie = graphene.Field(MovieType, id=graphene.Int())
actors = graphene.List(ActorType)
movies = graphene.List(MovieType)
...methods are removed for brevity.

class Mutation(graphene.ObjectType):
create_actor = CreateActor.Field()
update_actor = UpdateActor.Field()
create_movie = CreateMovie.Field()
update_movie = UpdateMovie.Field()