Remove cyclic dependency

mwdb/core/oauth/provider.py

@@ -1,15 +1,17 @@
 import hashlib
-from typing import Iterator
+from typing import TYPE_CHECKING, Iterator
 
 from authlib.oidc.core import UserInfo
 from marshmallow import ValidationError
 from sqlalchemy import exists
 
-from mwdb.model import Group, User, db
 from mwdb.schema.user import UserLoginSchemaBase
 
 from .client import OpenIDClient
 
+if TYPE_CHECKING:
+    from mwdb.model import Group, User
+
 
 class OpenIDProvider:
     """
@@ -55,6 +57,8 @@ def create_provider_group(self) -> "Group":
         """
         Creates a Group model object for a new OpenID provider
         """
+        from mwdb.model import Group
+
         group_name = self.get_group_name()
         return Group(name=group_name, immutable=True, workspace=False)
 
@@ -94,6 +98,8 @@ def create_user(self, sub: bytes, userinfo: UserInfo) -> "User":
         """
         Creates a User model object for a new OpenID identity user
         """
+        from mwdb.model import Group, User, db
+
         for username in self.iter_user_name_variants(sub, userinfo):
             try:
                 UserLoginSchemaBase().load({"login": username})