diff --git a/homeassistant/components/history/__init__.py b/homeassistant/components/history/__init__.py
index 7c3087d471f..2ac9a77c025 100644
--- a/homeassistant/components/history/__init__.py
+++ b/homeassistant/components/history/__init__.py
@@ -211,8 +211,7 @@ class HistoryPeriodView(HomeAssistantView):
         if start_time > now:
             return self.json([])
 
-        end_time_str = request.query.get("end_time")
-        if end_time_str:
+        if end_time_str := request.query.get("end_time"):
             end_time = dt_util.parse_datetime(end_time_str)
             if end_time:
                 end_time = dt_util.as_utc(end_time)
@@ -304,13 +303,11 @@ class HistoryPeriodView(HomeAssistantView):
 def sqlalchemy_filter_from_include_exclude_conf(conf):
     """Build a sql filter from config."""
     filters = Filters()
-    exclude = conf.get(CONF_EXCLUDE)
-    if exclude:
+    if exclude := conf.get(CONF_EXCLUDE):
         filters.excluded_entities = exclude.get(CONF_ENTITIES, [])
         filters.excluded_domains = exclude.get(CONF_DOMAINS, [])
         filters.excluded_entity_globs = exclude.get(CONF_ENTITY_GLOBS, [])
-    include = conf.get(CONF_INCLUDE)
-    if include:
+    if include := conf.get(CONF_INCLUDE):
         filters.included_entities = include.get(CONF_ENTITIES, [])
         filters.included_domains = include.get(CONF_DOMAINS, [])
         filters.included_entity_globs = include.get(CONF_ENTITY_GLOBS, [])
diff --git a/homeassistant/components/homeassistant/scene.py b/homeassistant/components/homeassistant/scene.py
index e5b37dd3f01..cd5da46a03a 100644
--- a/homeassistant/components/homeassistant/scene.py
+++ b/homeassistant/components/homeassistant/scene.py
@@ -150,9 +150,7 @@ def entities_in_scene(hass: HomeAssistant, entity_id: str) -> list[str]:
 
     platform = hass.data[DATA_PLATFORM]
 
-    entity = platform.entities.get(entity_id)
-
-    if entity is None:
+    if (entity := platform.entities.get(entity_id)) is None:
         return []
 
     return list(entity.scene_config.states)
@@ -233,8 +231,7 @@ async def async_setup_platform(hass, config, async_add_entities, discovery_info=
         entities = call.data[CONF_ENTITIES]
 
         for entity_id in snapshot:
-            state = hass.states.get(entity_id)
-            if state is None:
+            if (state := hass.states.get(entity_id)) is None:
                 _LOGGER.warning(
                     "Entity %s does not exist and therefore cannot be snapshotted",
                     entity_id,
@@ -248,8 +245,7 @@ async def async_setup_platform(hass, config, async_add_entities, discovery_info=
 
         scene_config = SceneConfig(None, call.data[CONF_SCENE_ID], None, entities)
         entity_id = f"{SCENE_DOMAIN}.{scene_config.name}"
-        old = platform.entities.get(entity_id)
-        if old is not None:
+        if (old := platform.entities.get(entity_id)) is not None:
             if not old.from_service:
                 _LOGGER.warning("The scene %s already exists", entity_id)
                 return
@@ -263,10 +259,8 @@ async def async_setup_platform(hass, config, async_add_entities, discovery_info=
 
 def _process_scenes_config(hass, async_add_entities, config):
     """Process multiple scenes and add them."""
-    scene_config = config[STATES]
-
     # Check empty list
-    if not scene_config:
+    if not (scene_config := config[STATES]):
         return
 
     async_add_entities(
diff --git a/homeassistant/components/homeassistant/triggers/time.py b/homeassistant/components/homeassistant/triggers/time.py
index 6ca1998a5c3..90780489d7b 100644
--- a/homeassistant/components/homeassistant/triggers/time.py
+++ b/homeassistant/components/homeassistant/triggers/time.py
@@ -79,13 +79,11 @@ async def async_attach_trigger(hass, config, action, automation_info):
 
         # Check state of entity. If valid, set up a listener.
         if new_state.domain == "input_datetime":
-            has_date = new_state.attributes["has_date"]
-            if has_date:
+            if has_date := new_state.attributes["has_date"]:
                 year = new_state.attributes["year"]
                 month = new_state.attributes["month"]
                 day = new_state.attributes["day"]
-            has_time = new_state.attributes["has_time"]
-            if has_time:
+            if has_time := new_state.attributes["has_time"]:
                 hour = new_state.attributes["hour"]
                 minute = new_state.attributes["minute"]
                 second = new_state.attributes["second"]
diff --git a/homeassistant/components/http/auth.py b/homeassistant/components/http/auth.py
index 43ea0522594..e4d7da6ac9b 100644
--- a/homeassistant/components/http/auth.py
+++ b/homeassistant/components/http/auth.py
@@ -29,9 +29,7 @@ def async_sign_path(
     hass: HomeAssistant, refresh_token_id: str, path: str, expiration: timedelta
 ) -> str:
     """Sign a path for temporary access without auth header."""
-    secret = hass.data.get(DATA_SIGN_SECRET)
-
-    if secret is None:
+    if (secret := hass.data.get(DATA_SIGN_SECRET)) is None:
         secret = hass.data[DATA_SIGN_SECRET] = secrets.token_hex()
 
     now = dt_util.utcnow()
@@ -80,14 +78,10 @@ def setup_auth(hass: HomeAssistant, app: Application) -> None:
 
     async def async_validate_signed_request(request: Request) -> bool:
         """Validate a signed request."""
-        secret = hass.data.get(DATA_SIGN_SECRET)
-
-        if secret is None:
+        if (secret := hass.data.get(DATA_SIGN_SECRET)) is None:
             return False
 
-        signature = request.query.get(SIGN_QUERY_PARAM)
-
-        if signature is None:
+        if (signature := request.query.get(SIGN_QUERY_PARAM)) is None:
             return False
 
         try:
diff --git a/homeassistant/components/http/view.py b/homeassistant/components/http/view.py
index adebf2bb46a..949813ca4ad 100644
--- a/homeassistant/components/http/view.py
+++ b/homeassistant/components/http/view.py
@@ -40,8 +40,7 @@ class HomeAssistantView:
     @staticmethod
     def context(request: web.Request) -> Context:
         """Generate a context from a request."""
-        user = request.get("hass_user")
-        if user is None:
+        if (user := request.get("hass_user")) is None:
             return Context()
 
         return Context(user_id=user.id)
diff --git a/homeassistant/components/input_boolean/reproduce_state.py b/homeassistant/components/input_boolean/reproduce_state.py
index 961345b7429..6c68489e4cb 100644
--- a/homeassistant/components/input_boolean/reproduce_state.py
+++ b/homeassistant/components/input_boolean/reproduce_state.py
@@ -28,9 +28,7 @@ async def _async_reproduce_states(
     reproduce_options: dict[str, Any] | None = None,
 ) -> None:
     """Reproduce input boolean states."""
-    cur_state = hass.states.get(state.entity_id)
-
-    if cur_state is None:
+    if (cur_state := hass.states.get(state.entity_id)) is None:
         _LOGGER.warning("Unable to find entity %s", state.entity_id)
         return
 
diff --git a/homeassistant/components/input_datetime/__init__.py b/homeassistant/components/input_datetime/__init__.py
index 2713eef17f8..13063910e2b 100644
--- a/homeassistant/components/input_datetime/__init__.py
+++ b/homeassistant/components/input_datetime/__init__.py
@@ -83,8 +83,7 @@ def has_date_or_time(conf):
 
 def valid_initial(conf):
     """Check the initial value is valid."""
-    initial = conf.get(CONF_INITIAL)
-    if not initial:
+    if not (initial := conf.get(CONF_INITIAL)):
         return conf
 
     if conf[CONF_HAS_DATE] and conf[CONF_HAS_TIME]:
@@ -226,8 +225,7 @@ class InputDatetime(RestoreEntity):
         self.editable = True
         self._current_datetime = None
 
-        initial = config.get(CONF_INITIAL)
-        if not initial:
+        if not (initial := config.get(CONF_INITIAL)):
             return
 
         if self.has_date and self.has_time:
diff --git a/homeassistant/components/input_datetime/reproduce_state.py b/homeassistant/components/input_datetime/reproduce_state.py
index 230a0ed235c..6f36be0850a 100644
--- a/homeassistant/components/input_datetime/reproduce_state.py
+++ b/homeassistant/components/input_datetime/reproduce_state.py
@@ -41,9 +41,7 @@ async def _async_reproduce_state(
     reproduce_options: dict[str, Any] | None = None,
 ) -> None:
     """Reproduce a single state."""
-    cur_state = hass.states.get(state.entity_id)
-
-    if cur_state is None:
+    if (cur_state := hass.states.get(state.entity_id)) is None:
         _LOGGER.warning("Unable to find entity %s", state.entity_id)
         return
 
diff --git a/homeassistant/components/input_select/reproduce_state.py b/homeassistant/components/input_select/reproduce_state.py
index a2cb2cadd0b..493980337fe 100644
--- a/homeassistant/components/input_select/reproduce_state.py
+++ b/homeassistant/components/input_select/reproduce_state.py
@@ -31,10 +31,8 @@ async def _async_reproduce_state(
     reproduce_options: dict[str, Any] | None = None,
 ) -> None:
     """Reproduce a single state."""
-    cur_state = hass.states.get(state.entity_id)
-
     # Return if we can't find entity
-    if cur_state is None:
+    if (cur_state := hass.states.get(state.entity_id)) is None:
         _LOGGER.warning("Unable to find entity %s", state.entity_id)
         return
 
diff --git a/homeassistant/components/input_text/reproduce_state.py b/homeassistant/components/input_text/reproduce_state.py
index 56a03b0d133..ef82579f4b7 100644
--- a/homeassistant/components/input_text/reproduce_state.py
+++ b/homeassistant/components/input_text/reproduce_state.py
@@ -22,10 +22,8 @@ async def _async_reproduce_state(
     reproduce_options: dict[str, Any] | None = None,
 ) -> None:
     """Reproduce a single state."""
-    cur_state = hass.states.get(state.entity_id)
-
     # Return if we can't find the entity
-    if cur_state is None:
+    if (cur_state := hass.states.get(state.entity_id)) is None:
         _LOGGER.warning("Unable to find entity %s", state.entity_id)
         return
 
diff --git a/homeassistant/components/light/__init__.py b/homeassistant/components/light/__init__.py
index 4a0025126c8..e195ab0f09b 100644
--- a/homeassistant/components/light/__init__.py
+++ b/homeassistant/components/light/__init__.py
@@ -125,13 +125,11 @@ def get_supported_color_modes(hass: HomeAssistant, entity_id: str) -> set | None
     First try the statemachine, then entity registry.
     This is the equivalent of entity helper get_supported_features.
     """
-    state = hass.states.get(entity_id)
-    if state:
+    if state := hass.states.get(entity_id):
         return state.attributes.get(ATTR_SUPPORTED_COLOR_MODES)
 
     entity_registry = er.async_get(hass)
-    entry = entity_registry.async_get(entity_id)
-    if not entry:
+    if not (entry := entity_registry.async_get(entity_id)):
         raise HomeAssistantError(f"Unknown entity {entity_id}")
     if not entry.capabilities:
         return None
@@ -629,9 +627,7 @@ class Profiles:
     @callback
     def apply_profile(self, name: str, params: dict) -> None:
         """Apply a profile."""
-        profile = self.data.get(name)
-
-        if profile is None:
+        if (profile := self.data.get(name)) is None:
             return
 
         if profile.hs_color is not None:
diff --git a/homeassistant/components/light/reproduce_state.py b/homeassistant/components/light/reproduce_state.py
index 7cc6b9c572c..9c382fcb7fa 100644
--- a/homeassistant/components/light/reproduce_state.py
+++ b/homeassistant/components/light/reproduce_state.py
@@ -123,9 +123,7 @@ async def _async_reproduce_state(
     reproduce_options: dict[str, Any] | None = None,
 ) -> None:
     """Reproduce a single state."""
-    cur_state = hass.states.get(state.entity_id)
-
-    if cur_state is None:
+    if (cur_state := hass.states.get(state.entity_id)) is None:
         _LOGGER.warning("Unable to find entity %s", state.entity_id)
         return
 
diff --git a/homeassistant/components/logbook/__init__.py b/homeassistant/components/logbook/__init__.py
index 91739aa5990..9bab6d0812e 100644
--- a/homeassistant/components/logbook/__init__.py
+++ b/homeassistant/components/logbook/__init__.py
@@ -150,9 +150,7 @@ async def async_setup(hass, config):
         "logbook", "logbook", "hass:format-list-bulleted-type"
     )
 
-    conf = config.get(DOMAIN, {})
-
-    if conf:
+    if conf := config.get(DOMAIN, {}):
         filters = sqlalchemy_filter_from_include_exclude_conf(conf)
         entities_filter = convert_include_exclude_filter(conf)
     else:
@@ -202,8 +200,7 @@ class LogbookView(HomeAssistantView):
         else:
             datetime = dt_util.start_of_local_day()
 
-        period = request.query.get("period")
-        if period is None:
+        if (period := request.query.get("period")) is None:
             period = 1
         else:
             period = int(period)
@@ -218,8 +215,7 @@ class LogbookView(HomeAssistantView):
                     "Format should be <domain>.<object_id>"
                 ) from vol.Invalid
 
-        end_time = request.query.get("end_time")
-        if end_time is None:
+        if (end_time := request.query.get("end_time")) is None:
             start_day = dt_util.as_utc(datetime) - timedelta(days=period - 1)
             end_day = start_day + timedelta(days=period)
         else:
@@ -605,9 +601,7 @@ def _keep_event(hass, event, entities_filter):
 def _augment_data_with_context(
     data, entity_id, event, context_lookup, entity_attr_cache, external_events
 ):
-    context_event = context_lookup.get(event.context_id)
-
-    if not context_event:
+    if not (context_event := context_lookup.get(event.context_id)):
         return
 
     if event == context_event:
@@ -663,8 +657,7 @@ def _augment_data_with_context(
     if event_type in external_events:
         domain, describe_event = external_events[event_type]
         data["context_domain"] = domain
-        name = describe_event(context_event).get(ATTR_NAME)
-        if name:
+        if name := describe_event(context_event).get(ATTR_NAME):
             data["context_name"] = name
 
 
@@ -789,8 +782,7 @@ class EntityAttributeCache:
         else:
             self._cache[entity_id] = {}
 
-        current_state = self._hass.states.get(entity_id)
-        if current_state:
+        if current_state := self._hass.states.get(entity_id):
             # Try the current state as its faster than decoding the
             # attributes
             self._cache[entity_id][attribute] = current_state.attributes.get(attribute)
diff --git a/homeassistant/components/media_player/__init__.py b/homeassistant/components/media_player/__init__.py
index dbe7c0ef04d..c84ccdfc105 100644
--- a/homeassistant/components/media_player/__init__.py
+++ b/homeassistant/components/media_player/__init__.py
@@ -984,8 +984,7 @@ class MediaPlayerEntity(Entity):
             response = await websession.get(url)
             if response.status == HTTP_OK:
                 content = await response.read()
-                content_type = response.headers.get(CONTENT_TYPE)
-                if content_type:
+                if content_type := response.headers.get(CONTENT_TYPE):
                     content_type = content_type.split(";")[0]
 
         if content is None:
diff --git a/homeassistant/components/number/reproduce_state.py b/homeassistant/components/number/reproduce_state.py
index dbf4af1f860..380ca0eb080 100644
--- a/homeassistant/components/number/reproduce_state.py
+++ b/homeassistant/components/number/reproduce_state.py
@@ -22,9 +22,7 @@ async def _async_reproduce_state(
     reproduce_options: dict[str, Any] | None = None,
 ) -> None:
     """Reproduce a single state."""
-    cur_state = hass.states.get(state.entity_id)
-
-    if cur_state is None:
+    if (cur_state := hass.states.get(state.entity_id)) is None:
         _LOGGER.warning("Unable to find entity %s", state.entity_id)
         return
 
diff --git a/homeassistant/components/persistent_notification/__init__.py b/homeassistant/components/persistent_notification/__init__.py
index 8725878797b..23b3a6b07d8 100644
--- a/homeassistant/components/persistent_notification/__init__.py
+++ b/homeassistant/components/persistent_notification/__init__.py
@@ -71,8 +71,7 @@ def async_create(
     context: Context | None = None,
 ) -> None:
     """Generate a notification."""
-    notifications = hass.data.get(DOMAIN)
-    if notifications is None:
+    if (notifications := hass.data.get(DOMAIN)) is None:
         notifications = hass.data[DOMAIN] = {}
 
     if notification_id is not None:
@@ -134,8 +133,7 @@ def async_dismiss(
     hass: HomeAssistant, notification_id: str, *, context: Context | None = None
 ) -> None:
     """Remove a notification."""
-    notifications = hass.data.get(DOMAIN)
-    if notifications is None:
+    if (notifications := hass.data.get(DOMAIN)) is None:
         notifications = hass.data[DOMAIN] = {}
 
     entity_id = ENTITY_ID_FORMAT.format(slugify(notification_id))
diff --git a/homeassistant/components/person/__init__.py b/homeassistant/components/person/__init__.py
index ba1f0ced623..4b7d6a54b1f 100644
--- a/homeassistant/components/person/__init__.py
+++ b/homeassistant/components/person/__init__.py
@@ -226,9 +226,7 @@ class PersonStorageCollection(collection.StorageCollection):
         """Validate the config is valid."""
         data = self.CREATE_SCHEMA(data)
 
-        user_id = data.get(CONF_USER_ID)
-
-        if user_id is not None:
+        if (user_id := data.get(CONF_USER_ID)) is not None:
             await self._validate_user_id(user_id)
 
         return data
@@ -410,8 +408,7 @@ class Person(RestoreEntity):
             data[ATTR_GPS_ACCURACY] = self._gps_accuracy
         if self._source is not None:
             data[ATTR_SOURCE] = self._source
-        user_id = self._config.get(CONF_USER_ID)
-        if user_id is not None:
+        if (user_id := self._config.get(CONF_USER_ID)) is not None:
             data[ATTR_USER_ID] = user_id
         return data
 
@@ -448,9 +445,7 @@ class Person(RestoreEntity):
             self._unsub_track_device()
             self._unsub_track_device = None
 
-        trackers = self._config[CONF_DEVICE_TRACKERS]
-
-        if trackers:
+        if trackers := self._config[CONF_DEVICE_TRACKERS]:
             _LOGGER.debug("Subscribe to device trackers for %s", self.entity_id)
 
             self._unsub_track_device = async_track_state_change_event(
diff --git a/homeassistant/components/recorder/__init__.py b/homeassistant/components/recorder/__init__.py
index 7e9bab0ed4e..471e86609ae 100644
--- a/homeassistant/components/recorder/__init__.py
+++ b/homeassistant/components/recorder/__init__.py
@@ -463,9 +463,7 @@ class Recorder(threading.Thread):
         if event.event_type in self.exclude_t:
             return False
 
-        entity_id = event.data.get(ATTR_ENTITY_ID)
-
-        if entity_id is None:
+        if (entity_id := event.data.get(ATTR_ENTITY_ID)) is None:
             return True
 
         if isinstance(entity_id, str):
@@ -496,8 +494,7 @@ class Recorder(threading.Thread):
 
     def do_adhoc_statistics(self, **kwargs):
         """Trigger an adhoc statistics run."""
-        start = kwargs.get("start")
-        if not start:
+        if not (start := kwargs.get("start")):
             start = statistics.get_start_time()
         self.queue.put(StatisticsTask(start))
 
diff --git a/homeassistant/components/recorder/statistics.py b/homeassistant/components/recorder/statistics.py
index 2dc18d3aecb..402668e50d8 100644
--- a/homeassistant/components/recorder/statistics.py
+++ b/homeassistant/components/recorder/statistics.py
@@ -523,8 +523,7 @@ def list_statistic_ids(
         metadata = get_metadata_with_session(hass, session, None, statistic_type)
 
         for _, meta in metadata.values():
-            unit = meta["unit_of_measurement"]
-            if unit is not None:
+            if (unit := meta["unit_of_measurement"]) is not None:
                 # Display unit according to user settings
                 unit = _configured_unit(unit, units)
             meta["unit_of_measurement"] = unit
diff --git a/homeassistant/components/switch/reproduce_state.py b/homeassistant/components/switch/reproduce_state.py
index 4cc1ec1f693..0a6d0de9602 100644
--- a/homeassistant/components/switch/reproduce_state.py
+++ b/homeassistant/components/switch/reproduce_state.py
@@ -30,9 +30,7 @@ async def _async_reproduce_state(
     reproduce_options: dict[str, Any] | None = None,
 ) -> None:
     """Reproduce a single state."""
-    cur_state = hass.states.get(state.entity_id)
-
-    if cur_state is None:
+    if (cur_state := hass.states.get(state.entity_id)) is None:
         _LOGGER.warning("Unable to find entity %s", state.entity_id)
         return
 
diff --git a/homeassistant/components/timer/reproduce_state.py b/homeassistant/components/timer/reproduce_state.py
index 33aed933a06..5628c0b4bbc 100644
--- a/homeassistant/components/timer/reproduce_state.py
+++ b/homeassistant/components/timer/reproduce_state.py
@@ -33,9 +33,7 @@ async def _async_reproduce_state(
     reproduce_options: dict[str, Any] | None = None,
 ) -> None:
     """Reproduce a single state."""
-    cur_state = hass.states.get(state.entity_id)
-
-    if cur_state is None:
+    if (cur_state := hass.states.get(state.entity_id)) is None:
         _LOGGER.warning("Unable to find entity %s", state.entity_id)
         return
 
diff --git a/homeassistant/components/vacuum/reproduce_state.py b/homeassistant/components/vacuum/reproduce_state.py
index f8d718c9979..fbcc97445c8 100644
--- a/homeassistant/components/vacuum/reproduce_state.py
+++ b/homeassistant/components/vacuum/reproduce_state.py
@@ -50,9 +50,7 @@ async def _async_reproduce_state(
     reproduce_options: dict[str, Any] | None = None,
 ) -> None:
     """Reproduce a single state."""
-    cur_state = hass.states.get(state.entity_id)
-
-    if cur_state is None:
+    if (cur_state := hass.states.get(state.entity_id)) is None:
         _LOGGER.warning("Unable to find entity %s", state.entity_id)
         return
 
diff --git a/homeassistant/components/webhook/__init__.py b/homeassistant/components/webhook/__init__.py
index 52778600147..983ead616f2 100644
--- a/homeassistant/components/webhook/__init__.py
+++ b/homeassistant/components/webhook/__init__.py
@@ -81,10 +81,9 @@ def async_generate_path(webhook_id: str) -> str:
 async def async_handle_webhook(hass, webhook_id, request):
     """Handle a webhook."""
     handlers = hass.data.setdefault(DOMAIN, {})
-    webhook = handlers.get(webhook_id)
 
     # Always respond successfully to not give away if a hook exists or not.
-    if webhook is None:
+    if (webhook := handlers.get(webhook_id)) is None:
         if isinstance(request, MockRequest):
             received_from = request.mock_source
         else:
diff --git a/homeassistant/components/websocket_api/__init__.py b/homeassistant/components/websocket_api/__init__.py
index 2e44a0aa0cd..13939338c3e 100644
--- a/homeassistant/components/websocket_api/__init__.py
+++ b/homeassistant/components/websocket_api/__init__.py
@@ -58,8 +58,7 @@ def async_register_command(
         schema = handler._ws_schema  # type: ignore[attr-defined]
     else:
         command = command_or_handler
-    handlers = hass.data.get(DOMAIN)
-    if handlers is None:
+    if (handlers := hass.data.get(DOMAIN)) is None:
         handlers = hass.data[DOMAIN] = {}
     handlers[command] = (handler, schema)
 
diff --git a/homeassistant/components/websocket_api/commands.py b/homeassistant/components/websocket_api/commands.py
index fa8286084b6..4216eae5a09 100644
--- a/homeassistant/components/websocket_api/commands.py
+++ b/homeassistant/components/websocket_api/commands.py
@@ -420,9 +420,7 @@ def handle_entity_source(
                 perm_category=CAT_ENTITIES,
             )
 
-        source = raw_sources.get(entity_id)
-
-        if source is None:
+        if (source := raw_sources.get(entity_id)) is None:
             connection.send_error(msg["id"], ERR_NOT_FOUND, "Entity not found")
             return