Python 3.10 compat

Author: AlanCoding

dispatcher/factories.py

@@ -125,11 +125,10 @@ def generate_settings_schema(settings: LazySettings = global_settings) -> dict:
 
     ret['service']['pool_kwargs'] = schema_for_cls(WorkerPool)
     ret['service']['process_manager_kwargs'] = {}
-    pm_cls_names = []
-    for pm_cls in (process.ProcessManager, process.ForkServerManager):
-        pm_cls_names.append(pm_cls.__name__)
+    pm_classes = (process.ProcessManager, process.ForkServerManager)
+    for pm_cls in pm_classes:
         ret['service']['process_manager_kwargs'].update(schema_for_cls(pm_cls))
-    ret['service']['process_manager_cls'] = str(Literal[*pm_cls_names])
+    ret['service']['process_manager_cls'] = str(Literal[tuple(pm_cls.__name__ for pm_cls in pm_classes)])
 
     for broker_name, broker_kwargs in settings.brokers.items():
         broker = get_broker(broker_name, broker_kwargs)