Remove unused imports and variables

hardware/button/ldr_button.py

@@ -42,7 +42,7 @@ def __run(self):
                 self._device["internal_state"] = self.PRESSED if count <= (self.__CAPACITOR * 10000) else self.RELEASED
                 sleep(0.1)
 
-            except KeyboardInterrupt as ex:
+            except KeyboardInterrupt:
                 self.stop()
 
     #                print(f"Fetch CTRL-c... and now what..? For now.. press again Ctrl-C .. ({ex})")

hardware/webcam/hlslive_webcam.py

@@ -3,9 +3,6 @@
 
 logger = terrariumLogging.logging.getLogger(__name__)
 
-from io import BytesIO
-import subprocess
-
 from . import terrariumWebcam
 from terrariumUtils import terrariumUtils
 

terrariumArea.py

@@ -3,7 +3,6 @@
 
 logger = terrariumLogging.logging.getLogger(__name__)
 
-from operator import itemgetter
 import copy
 import datetime
 import time

terrariumAudio.py

@@ -54,7 +54,7 @@ def volume(__cls__, hw, value=None):
                 # Try to 'overload' the volume by 20%. Can work for some sound cards
                 value = int(max(0, min(120, 120 * (value / 100))))
                 mixer.setvolume(value, alsaaudio.MIXER_CHANNEL_ALL)
-            except alsaaudio.ALSAAudioError as ex:
+            except alsaaudio.ALSAAudioError:
                 try:
                     # When the 'overloaded' value is to high, fall back to normal max volume
                     value = int(max(0, min(100, value)))

terrariumNotification.py

@@ -2329,7 +2329,7 @@ def load_setup(self, setup_data):
                     self.connection = mqtt.Client(
                         mqtt.CallbackAPIVersion.VERSION1, client_id=f"TerrariumPI {self.setup['version']}"
                     )
-                except Exception as ex:
+                except Exception:
                     # Old version
                     self.connection = mqtt.Client(client_id=f"TerrariumPI {self.setup['version']}")
 

weather/__init__.py

@@ -56,7 +56,6 @@ def update(self):
             self._device["last_update"] is None
             or (datetime.now() - self._device["last_update"]).total_seconds() > self.__UPDATE_TIMEOUT
         ):
-            start = time.time()
             logger.debug(f"Loading online weather data from source: {self.address}")
 
             if self._load_data():