For Python 3.9 use TypedDict from typing_extensions

Author: medihack

procrastinate/tasks.py

@@ -3,9 +3,9 @@
 import datetime
 import inspect
 import logging
-from typing import Callable, Generic, TypedDict, cast
+from typing import Callable, Generic, cast
 
-from typing_extensions import NotRequired, ParamSpec, TypeVar, Unpack
+from typing_extensions import NotRequired, ParamSpec, TypedDict, TypeVar, Unpack
 
 from procrastinate import app as app_module
 from procrastinate import blueprints, exceptions, jobs, manager, types, utils