Some typing hints added and the code order aligned.

miio/airhumidifier.py

@@ -19,10 +19,60 @@ class LedBrightness(enum.Enum):
     Off = 2
 
 
+class AirHumidifierStatus:
+    """Container for status reports from the air humidifier."""
+
+    def __init__(self, data: Dict[str, Any]) -> None:
+        self.data = data
+
+    @property
+    def power(self) -> str:
+        return self.data["power"]
+
+    @property
+    def is_on(self) -> bool:
+        return self.power == "on"
+
+    @property
+    def mode(self) -> OperationMode:
+        return OperationMode(self.data["mode"])
+
+    @property
+    def temperature(self) -> Optional[float]:
+        if self.data["temp_dec"] is not None:
+            return self.data["temp_dec"] / 10.0
+        return None
+
+    @property
+    def humidity(self) -> int:
+        return self.data["humidity"]
+
+    @property
+    def buzzer(self) -> bool:
+        return self.data["buzzer"] == "on"
+
+    @property
+    def led(self) -> bool:
+        return self.data["led"] == "on"
+
+    @property
+    def led_brightness(self) -> Optional[LedBrightness]:
+        if self.data["led_b"] is not None:
+            return LedBrightness(self.data["led_b"])
+        return None
+
+    def __str__(self) -> str:
+        s = "<AirHumidiferStatus power=%s, mode=%s, temperature=%s, " \
+            "humidity=%s%%, led=%s, led_brightness=%s, buzzer=%s>" % \
+            (self.power, self.mode, self.temperature,
+             self.humidity, self.led, self.led_brightness, self.buzzer)
+        return s
+
+
 class AirHumidifier(Device):
     """Main class representing the air humidifier."""
 
-    def status(self):
+    def status(self) -> AirHumidifierStatus:
         """Retrieve properties."""
 
         properties = ['power', 'mode', 'temp_dec', 'humidity', 'buzzer',
@@ -73,53 +123,3 @@ def set_buzzer(self, buzzer: bool):
             return self.send("set_buzzer", ["on"])
         else:
             return self.send("set_buzzer", ["off"])
-
-
-class AirHumidifierStatus:
-    """Container for status reports from the air humidifier."""
-
-    def __init__(self, data: Dict[str, Any]) -> None:
-        self.data = data
-
-    @property
-    def power(self) -> str:
-        return self.data["power"]
-
-    @property
-    def is_on(self) -> bool:
-        return self.power == "on"
-
-    @property
-    def mode(self) -> OperationMode:
-        return OperationMode(self.data["mode"])
-
-    @property
-    def temperature(self) -> Optional[float]:
-        if self.data["temp_dec"] is not None:
-            return self.data["temp_dec"] / 10.0
-        return None
-
-    @property
-    def humidity(self) -> int:
-        return self.data["humidity"]
-
-    @property
-    def buzzer(self) -> bool:
-        return self.data["buzzer"] == "on"
-
-    @property
-    def led(self) -> bool:
-        return self.data["led"] == "on"
-
-    @property
-    def led_brightness(self) -> Optional[LedBrightness]:
-        if self.data["led_b"] is not None:
-            return LedBrightness(self.data["led_b"])
-        return None
-
-    def __str__(self) -> str:
-        s = "<AirHumidiferStatus power=%s, mode=%s, temperature=%s, " \
-            "humidity=%s%%, led=%s, led_brightness=%s, buzzer=%s>" % \
-            (self.power, self.mode, self.temperature,
-             self.humidity, self.led, self.led_brightness, self.buzzer)
-        return s

miio/airpurifier.py

@@ -20,71 +20,6 @@ class LedBrightness(enum.Enum):
     Off = 2
 
 
-class AirPurifier(Device):
-    """Main class representing the air purifier."""
-
-    def status(self):
-        """Retrieve properties."""
-
-        properties = ['power', 'aqi', 'humidity', 'temp_dec',
-                      'mode', 'led', 'led_b', 'buzzer', 'child_lock',
-                      'bright', 'favorite_level', 'filter1_life',
-                      'f1_hour_used', 'use_time', 'motor1_speed']
-
-        values = self.send(
-            "get_prop",
-            properties
-        )
-
-        properties_count = len(properties)
-        values_count = len(values)
-        if properties_count != values_count:
-            _LOGGER.debug(
-                "Count (%s) of requested properties does not match the "
-                "count (%s) of received values.",
-                properties_count, values_count)
-
-        return AirPurifierStatus(
-            defaultdict(lambda: None, zip(properties, values)))
-
-    def on(self):
-        """Power on."""
-        return self.send("set_power", ["on"])
-
-    def off(self):
-        """Power off."""
-        return self.send("set_power", ["off"])
-
-    def set_mode(self, mode: OperationMode):
-        """Set mode."""
-        return self.send("set_mode", [mode.value])
-
-    def set_favorite_level(self, level: int):
-        """Set favorite level."""
-
-        # Set the favorite level used when the mode is `favorite`,
-        # should be  between 0 and 17.
-        return self.send("set_favorite_level", [level])  # 0 ... 17
-
-    def set_led_brightness(self, brightness: LedBrightness):
-        """Set led brightness."""
-        return self.send("set_led_b", [brightness.value])
-
-    def set_led(self, led: bool):
-        """Turn led on/off."""
-        if led:
-            return self.send("set_led", ['on'])
-        else:
-            return self.send("set_led", ['off'])
-
-    def set_buzzer(self, buzzer: bool):
-        """Set buzzer on/off."""
-        if buzzer:
-            return self.send("set_buzzer", ["on"])
-        else:
-            return self.send("set_buzzer", ["off"])
-
-
 class AirPurifierStatus:
     """Container for status reports from the air purifier."""
 
@@ -194,3 +129,68 @@ def __str__(self) -> str:
              self.filter_hours_used, self.use_time,
              self.motor_speed)
         return s
+
+
+class AirPurifier(Device):
+    """Main class representing the air purifier."""
+
+    def status(self) -> AirPurifierStatus:
+        """Retrieve properties."""
+
+        properties = ['power', 'aqi', 'humidity', 'temp_dec',
+                      'mode', 'led', 'led_b', 'buzzer', 'child_lock',
+                      'bright', 'favorite_level', 'filter1_life',
+                      'f1_hour_used', 'use_time', 'motor1_speed']
+
+        values = self.send(
+            "get_prop",
+            properties
+        )
+
+        properties_count = len(properties)
+        values_count = len(values)
+        if properties_count != values_count:
+            _LOGGER.debug(
+                "Count (%s) of requested properties does not match the "
+                "count (%s) of received values.",
+                properties_count, values_count)
+
+        return AirPurifierStatus(
+            defaultdict(lambda: None, zip(properties, values)))
+
+    def on(self):
+        """Power on."""
+        return self.send("set_power", ["on"])
+
+    def off(self):
+        """Power off."""
+        return self.send("set_power", ["off"])
+
+    def set_mode(self, mode: OperationMode):
+        """Set mode."""
+        return self.send("set_mode", [mode.value])
+
+    def set_favorite_level(self, level: int):
+        """Set favorite level."""
+
+        # Set the favorite level used when the mode is `favorite`,
+        # should be  between 0 and 17.
+        return self.send("set_favorite_level", [level])  # 0 ... 17
+
+    def set_led_brightness(self, brightness: LedBrightness):
+        """Set led brightness."""
+        return self.send("set_led_b", [brightness.value])
+
+    def set_led(self, led: bool):
+        """Turn led on/off."""
+        if led:
+            return self.send("set_led", ['on'])
+        else:
+            return self.send("set_led", ['off'])
+
+    def set_buzzer(self, buzzer: bool):
+        """Set buzzer on/off."""
+        if buzzer:
+            return self.send("set_buzzer", ["on"])
+        else:
+            return self.send("set_buzzer", ["off"])

miio/airqualitymonitor.py

@@ -32,10 +32,7 @@ def battery(self) -> int:
 
 
 class AirQualityMonitor(Device):
-    def __init__(self, *args, **kwargs):
-        super().__init__(*args, **kwargs)
-
-    def status(self):
+    def status(self) -> AirQualityMonitorStatus:
         """Return device status."""
 
         properties = ['power', 'aqi', 'battery', 'usb_state']

miio/ceil.py

@@ -64,6 +64,24 @@ class Ceil(Device):
     # TODO: - Auto On/Off Not Supported
     #       - Adjust Scenes with Wall Switch Not Supported
 
+    def status(self) -> CeilStatus:
+        """Retrieve properties."""
+        properties = ['power', 'bright', 'cct', 'snm', 'dv', 'bl', 'ac', ]
+        values = self.send(
+            "get_prop",
+            properties
+        )
+
+        properties_count = len(properties)
+        values_count = len(values)
+        if properties_count != values_count:
+            _LOGGER.debug(
+                "Count (%s) of requested properties does not match the "
+                "count (%s) of received values.",
+                properties_count, values_count)
+
+        return CeilStatus(defaultdict(lambda: None, zip(properties, values)))
+
     def on(self):
         """Power on."""
         return self.send("set_power", ["on"])
@@ -103,21 +121,3 @@ def automatic_color_temperature_on(self):
     def automatic_color_temperature_off(self):
         """Automatic color temperature off."""
         return self.send("enable_ac", [0])
-
-    def status(self) -> CeilStatus:
-        """Retrieve properties."""
-        properties = ['power', 'bright', 'cct', 'snm', 'dv', 'bl', 'ac', ]
-        values = self.send(
-            "get_prop",
-            properties
-        )
-
-        properties_count = len(properties)
-        values_count = len(values)
-        if properties_count != values_count:
-            _LOGGER.debug(
-                "Count (%s) of requested properties does not match the "
-                "count (%s) of received values.",
-                properties_count, values_count)
-
-        return CeilStatus(defaultdict(lambda: None, zip(properties, values)))

miio/fan.py

@@ -113,7 +113,7 @@ def __str__(self) -> str:
 class Fan(Device):
     """Main class representing the Xiaomi Smart Fan."""
 
-    def status(self):
+    def status(self) -> FanStatus:
         """Retrieve properties."""
         properties = ['temp_dec', 'humidity', 'angle', 'speed',
                       'poweroff_time', 'power', 'ac_power', 'battery',

miio/plug.py

@@ -8,6 +8,7 @@
 
 class PlugStatus:
     """Container for status reports from the plug."""
+
     def __init__(self, data: Dict[str, Any]) -> None:
         self.data = data
 
@@ -42,15 +43,7 @@ def __str__(self) -> str:
 class Plug(Device):
     """Main class representing the smart wifi socket / plug."""
 
-    def on(self):
-        """Power on."""
-        return self.send("set_power", ["on"])
-
-    def off(self):
-        """Power off."""
-        return self.send("set_power", ["off"])
-
-    def status(self):
+    def status(self) -> PlugStatus:
         """Retrieve properties."""
         properties = ['power', 'temperature', 'current']
         values = self.send(
@@ -68,3 +61,11 @@ def status(self):
 
         return PlugStatus(
             defaultdict(lambda: None, zip(properties, values)))
+
+    def on(self):
+        """Power on."""
+        return self.send("set_power", ["on"])
+
+    def off(self):
+        """Power off."""
+        return self.send("set_power", ["off"])