More type annotations.

[python_utils.git] / base_presence.py

diff --git a/base_presence.py b/base_presence.py
index 612193e1df3b84f0ee8fc52b86ab5c94ce7ee38d..3ceddb32dff9ab1bf2a17d2b3aa5547125ded2d9 100755 (executable)
--- a/base_presence.py
+++ b/base_presence.py
@@ -4,7 +4,7 @@ import datetime
 from collections import defaultdict
 import logging
 import re
-from typing import Dict, List, Set
+from typing import Dict, List, Optional, Set
 import warnings
 
 # Note: this module is fairly early loaded.  Be aware of dependencies.
@@ -75,7 +75,7 @@ class PresenceDetection(object):
         ] = defaultdict(dict)
         self.names_by_mac: Dict[str, str] = {}
         self.dark_locations: Set[Location] = set()
-        self.last_update = None
+        self.last_update: Optional[datetime.datetime] = None
 
     def maybe_update(self) -> None:
         if self.last_update is None: