Implemented retry mechanism in sensor backend

platypush/backend/sensor/__init__.py

@@ -82,8 +82,19 @@ class SensorBackend(Backend):
         if not self.plugin:
             raise NotImplementedError('No plugin specified')
 
-        plugin = get_plugin(self.plugin)
+        reload = False
+        success = False
+        data = None
+
+        while not success:
+            try:
+                plugin = get_plugin(self.plugin, reload=reload)
                 data = plugin.get_data(**self.plugin_args).output
+            except Exception as e:
+                self.logger.warning('Unexpected exception while getting data: {}'.format(str(e)))
+                self.logger.exception(e)
+                reload = True
+                time.sleep(5)
 
             if self.enabled_sensors:
                 data = {