ObjectType resolving fields from dicts or objects

Hi! There is an example code:

class Photo(graphene.ObjectTypet):
  
      id = graphene.ID()
      url = graphene.String()
      fileName = graphene.String()
      extension = graphene.String()
  
  
class User(graphene.ObjectTypet):
  
      _id = graphene.ID()
      name = graphene.String()
      photos = graphene.List(Photo)

class Query(graphene.ObjectType):
      user = graphene.Field(User, dict(_id=graphene.String(required=True)))
  
      async def resolve_user(self, info, _id):
          user = await db.users.find_one(dict(_id=_id))
          # do the simple filted
          resolved_fileds = {f: user[f]
                           for f in User._meta.fields}
          user = User(**resolved_fileds) if user else None
          return user

The result is

{
  "data": {
    "user": {
      "Id": "1",
      "name": "Test User",
      "photos": [
        {
          "id": null,
          "fileName": null
        }        
      ]
    }
  }
}

Field “photos” not initialized in init. In argument “photos” I got just list with dicts. I know that I can to this serialization by myself, but maybe it’s already implemented?

[jkimbo]

You could change the default resolver on the Photo Object type like this:

from graphene.types.resolver import dict_resolver

class Photo(graphene.ObjectType):
	class Meta:
		default_resolver = dict_resolver
      
	id = graphene.ID()
    url = graphene.String()
    fileName = graphene.String()
    extension = graphene.String()

[y0urself]

Is it correct, that the class Meta: “feature” is only for Python 2?

Is there any other workaround to set the default_resolver when using Python 3?