Fix linter errors

src/main.py

@@ -52,8 +52,6 @@ def read_motion_data(gateway, client, polling_interval, polling_models, stop_eve
                         continue
 
                     data = json.loads(sensor_resp['data'])
-                    state = data.get("status", None)
-                    short_id = sensor_resp['short_id']
                     if device['data'] != data or first:
                         device['data'] = data
                         _LOGGER.debug("Polling result differs for " + str(model) + " with sid(First: " + str(first) + "): " + str(sid) + "; " + str(data))
@@ -75,7 +73,7 @@ def process_mqtt_messages(gateway, client, stop_event):
             sid = data.get("sid", None)
             values = data.get("values", dict())
 
-            resp = gateway.write_to_hub(sid, **values)
+            gateway.write_to_hub(sid, **values)
             client._queue.task_done()
         except Exception as e:
             _LOGGER.error('Error while sending from mqtt to gateway: ', str(e))

src/mqtt.py

@@ -1,5 +1,4 @@
 import paho.mqtt.client as mqtt
-import os
 import logging
 from queue import Queue
 from threading import Thread
@@ -89,7 +88,7 @@ class Mqtt:
             if (model in self.event_based_sensors):
                 retain = False
             # fix for rgb format
-            if (key == "rgb" and self._is_int(value)):
+            if (key == "rgb" and value.isdigit()):
                 value = self._color_xiaomi_to_rgb(value)
             items[key] = value
 
@@ -157,7 +156,7 @@ class Mqtt:
             # use single value set method
 
             value = (msg.payload).decode('utf-8')
-            if self._is_int(value):
+            if value.isdigit():
                 value = int(value)
 
             # fix for rgb format
@@ -202,10 +201,3 @@ class Mqtt:
             bright = 255
         value = int('%02x%02x%02x%02x' % (bright, r, g, b), 16)
         return value
-
-    def _is_int(self, x):
-        try:
-            tmp = int(x)
-            return True
-        except Exception as e:
-            return False

src/xiaomihub.py

@@ -237,7 +237,7 @@ class XiaomiHub:
             if isinstance(packet, dict):
                 try:
                     sid = packet['sid']
-                    model = packet['model']
+                    #model = packet['model']
                     data = json.loads(packet['data'])
                     
                     for device in self.XIAOMI_HA_DEVICES[sid]: