[multiple] Fix misc cosmetic bugs (batch 2) (#15502)

esphome/components/atm90e32/sensor.py

@@ -132,7 +132,6 @@ ATM90E32_PHASE_SCHEMA = cv.Schema(
         cv.Optional(CONF_PHASE_ANGLE): sensor.sensor_schema(
             unit_of_measurement=UNIT_DEGREES,
             accuracy_decimals=2,
-            device_class=DEVICE_CLASS_POWER,
             state_class=STATE_CLASS_MEASUREMENT,
         ),
         cv.Optional(CONF_HARMONIC_POWER): sensor.sensor_schema(

esphome/components/esp8266/gpio.py

@@ -155,7 +155,7 @@ ESP8266_PIN_SCHEMA = cv.All(
 
 @dataclass
 class PinInitialState:
-    mode = 255
+    mode: int = 255
     level: int = 255
 
 

esphome/components/espnow/__init__.py

@@ -158,15 +158,15 @@ def validate_peer(value):
 
 def _validate_raw_data(value):
     if isinstance(value, str):
-        if len(value) >= MAX_ESPNOW_PACKET_SIZE:
+        if len(value) > MAX_ESPNOW_PACKET_SIZE:
             raise cv.Invalid(
-                f"'{CONF_DATA}' must be less than {MAX_ESPNOW_PACKET_SIZE} characters long, got {len(value)}"
+                f"'{CONF_DATA}' must be at most {MAX_ESPNOW_PACKET_SIZE} characters long, got {len(value)}"
             )
         return value
     if isinstance(value, list):
         if len(value) > MAX_ESPNOW_PACKET_SIZE:
             raise cv.Invalid(
-                f"'{CONF_DATA}' must be less than {MAX_ESPNOW_PACKET_SIZE} bytes long, got {len(value)}"
+                f"'{CONF_DATA}' must be at most {MAX_ESPNOW_PACKET_SIZE} bytes long, got {len(value)}"
             )
         return cv.Schema([cv.hex_uint8_t])(value)
     raise cv.Invalid(

esphome/components/kamstrup_kmp/sensor.py

@@ -13,6 +13,7 @@ from esphome.const import (
     DEVICE_CLASS_POWER,
     DEVICE_CLASS_TEMPERATURE,
     DEVICE_CLASS_VOLUME,
+    DEVICE_CLASS_VOLUME_FLOW_RATE,
     STATE_CLASS_MEASUREMENT,
     STATE_CLASS_TOTAL_INCREASING,
     UNIT_CELSIUS,
@@ -75,7 +76,7 @@ CONFIG_SCHEMA = (
             ),
             cv.Optional(CONF_FLOW): sensor.sensor_schema(
                 accuracy_decimals=1,
-                device_class=DEVICE_CLASS_VOLUME,
+                device_class=DEVICE_CLASS_VOLUME_FLOW_RATE,
                 state_class=STATE_CLASS_MEASUREMENT,
                 unit_of_measurement=UNIT_LITRE_PER_HOUR,
             ),

esphome/components/stepper/__init__.py

@@ -46,7 +46,7 @@ def validate_acceleration(value):
 
 def validate_speed(value):
     value = cv.string(value)
-    for suffix in ("steps/s", "steps/s"):
+    for suffix in ("steps/s",):
         value = value.removesuffix(suffix)
 
     if value == "inf":

esphome/zeroconf.py

@@ -25,7 +25,7 @@ _BACKGROUND_TASKS: set[asyncio.Task] = set()
 
 
 class DashboardStatus:
-    def __init__(self, on_update: Callable[[dict[str, bool | None], []]]) -> None:
+    def __init__(self, on_update: Callable[[dict[str, bool | None]], None]) -> None:
         """Initialize the dashboard status."""
         self.on_update = on_update