use typing.get_type_hints for all python3 versions

pupil_src/shared_modules/gaze_mapping/notifications.py

@@ -15,23 +15,7 @@
 
 from typing_extensions import Self, TypedDict
 
-if sys.version_info < (3, 9):
-
-    def get_type_hints(cls):
-        return cls.__annotations__
-
-else:
-    # Starting in Python 3.10, __annotations__ does no longer contain the annotations
-    # of the parent class. `_SerializedNamedTupleMixin.sanitize_serialized_dict`
-    # depends on the earlier implementation.
-    # We do not use `inspect.get_annotations()` as a replacement for two reasons:
-    # 1. It also does not include the base classes' annoations
-    # 2. The annotations might not be evaluated yet, containing `typing.ForwardRef`
-    #    instances
-    #
-    # `typing.get_type_hints` implements the desired behavior but is only available in
-    # Python 3.9 or newer
-    from typing import get_type_hints
+from typing import get_type_hints
 
 
 # TODO: Consider extending this pattern for notifications through the entire codebase and/or replace with dataclasses with Python 3.7

pupil_src/shared_modules/video_capture/neon_backend/background.py

@@ -75,15 +75,12 @@ def _event_loop(
         ipc_push_url: str,
         topic_prefix: str = "shared_camera.",
     ):
-        with (
-            NetworkInterface(
-                topic_prefix=topic_prefix,
-                ipc_pub_url=ipc_pub_url,
-                ipc_sub_url=ipc_sub_url,
-                ipc_push_url=ipc_push_url,
-            ) as network,
-            contextlib.suppress(KeyboardInterrupt),
-        ):
+        with NetworkInterface(
+            topic_prefix=topic_prefix,
+            ipc_pub_url=ipc_pub_url,
+            ipc_sub_url=ipc_sub_url,
+            ipc_push_url=ipc_push_url,
+        ) as network, contextlib.suppress(KeyboardInterrupt):
             process_started_event.set()
 
             camera_model = cm.Camera_Model.from_file(