fixup! Port GraphQLView to Graphene 3

Author: ktosiek

graphene_django/views.py

@@ -162,7 +162,9 @@ def get_response(self, request, data, show_graphiql=False):
                     self.format_error(e) for e in execution_result.errors
                 ]
 
-            if execution_result.errors and any(not e.path for e in execution_result.errors):
+            if execution_result.errors and any(
+                not e.path for e in execution_result.errors
+            ):
                 status_code = 400
             else:
                 response["data"] = execution_result.data