Fix implicit Optional [a-n] (#76720)

homeassistant/components/climacell/config_flow.py

@@ -19,7 +19,9 @@ class ClimaCellOptionsConfigFlow(config_entries.OptionsFlow):
         """Initialize ClimaCell options flow."""
         self._config_entry = config_entry
 
-    async def async_step_init(self, user_input: dict[str, Any] = None) -> FlowResult:
+    async def async_step_init(
+        self, user_input: dict[str, Any] | None = None
+    ) -> FlowResult:
         """Manage the ClimaCell options."""
         if user_input is not None:
             return self.async_create_entry(title="", data=user_input)

homeassistant/components/directv/config_flow.py

@@ -100,7 +100,7 @@ class DirecTVConfigFlow(ConfigFlow, domain=DOMAIN):
         return await self.async_step_ssdp_confirm()
 
     async def async_step_ssdp_confirm(
-        self, user_input: dict[str, Any] = None
+        self, user_input: dict[str, Any] | None = None
     ) -> FlowResult:
         """Handle a confirmation flow initiated by SSDP."""
         if user_input is None:

homeassistant/components/escea/climate.py

@@ -152,7 +152,7 @@ class ControllerEntity(ClimateEntity):
         )
 
     @callback
-    def set_available(self, available: bool, ex: Exception = None) -> None:
+    def set_available(self, available: bool, ex: Exception | None = None) -> None:
         """Set availability for the controller."""
         if self._attr_available == available:
             return

homeassistant/components/harmony/subscriber.py

@@ -1,4 +1,5 @@
 """Mixin class for handling harmony callback subscriptions."""
+from __future__ import annotations
 
 import asyncio
 import logging
@@ -85,7 +86,9 @@ class HarmonySubscriberMixin:
         self.async_unlock_start_activity()
         self._call_callbacks("activity_started", activity_info)
 
-    def _call_callbacks(self, callback_func_name: str, argument: tuple = None) -> None:
+    def _call_callbacks(
+        self, callback_func_name: str, argument: tuple | None = None
+    ) -> None:
         for subscription in self._subscriptions:
             current_callback = getattr(subscription, callback_func_name)
             if current_callback:

homeassistant/components/huisbaasje/sensor.py

@@ -42,7 +42,7 @@ class HuisbaasjeSensor(CoordinatorEntity, SensorEntity):
         user_id: str,
         name: str,
         source_type: str,
-        device_class: str = None,
+        device_class: str | None = None,
         sensor_type: str = SENSOR_TYPE_RATE,
         unit_of_measurement: str = POWER_WATT,
         icon: str = "mdi:lightning-bolt",

homeassistant/components/ipp/config_flow.py

@@ -174,7 +174,7 @@ class IPPFlowHandler(ConfigFlow, domain=DOMAIN):
         return await self.async_step_zeroconf_confirm()
 
     async def async_step_zeroconf_confirm(
-        self, user_input: dict[str, Any] = None
+        self, user_input: dict[str, Any] | None = None
     ) -> FlowResult:
         """Handle a confirmation flow initiated by zeroconf."""
         if user_input is None:

homeassistant/components/izone/climate.py

@@ -216,7 +216,7 @@ class ControllerDevice(ClimateEntity):
         return self._available
 
     @callback
-    def set_available(self, available: bool, ex: Exception = None) -> None:
+    def set_available(self, available: bool, ex: Exception | None = None) -> None:
         """
         Set availability for the controller.
 

homeassistant/components/minecraft_server/__init__.py

@@ -150,7 +150,7 @@ class MinecraftServer:
             )
             self.online = False
 
-    async def async_update(self, now: datetime = None) -> None:
+    async def async_update(self, now: datetime | None = None) -> None:
         """Get server data from 3rd party library and update properties."""
         # Check connection status.
         server_online_old = self.online

homeassistant/components/motioneye/__init__.py

@@ -544,7 +544,7 @@ class MotionEyeEntity(CoordinatorEntity):
         client: MotionEyeClient,
         coordinator: DataUpdateCoordinator,
         options: MappingProxyType[str, Any],
-        entity_description: EntityDescription = None,
+        entity_description: EntityDescription | None = None,
     ) -> None:
         """Initialize a motionEye entity."""
         self._camera_id = camera[KEY_ID]

homeassistant/components/motioneye/camera.py

@@ -266,10 +266,10 @@ class MotionEyeMjpegCamera(MotionEyeEntity, MjpegCamera):
 
     async def async_set_text_overlay(
         self,
-        left_text: str = None,
-        right_text: str = None,
-        custom_left_text: str = None,
-        custom_right_text: str = None,
+        left_text: str | None = None,
+        right_text: str | None = None,
+        custom_left_text: str | None = None,
+        custom_right_text: str | None = None,
     ) -> None:
         """Set text overlay for a camera."""
         # Fetch the very latest camera config to reduce the risk of updating with a

homeassistant/components/netgear/router.py

@@ -42,9 +42,9 @@ _LOGGER = logging.getLogger(__name__)
 
 def get_api(
     password: str,
-    host: str = None,
-    username: str = None,
-    port: int = None,
+    host: str | None = None,
+    username: str | None = None,
+    port: int | None = None,
     ssl: bool = False,
 ) -> Netgear:
     """Get the Netgear API and login to it."""