Update librouteros and re-connect to api if connection is lost (#18421)

* Reconnect when connection is lost

* Fix tabs

* add librouteros.exceptions

* add logger

* fix line too long

* added import librouteros

* Update librouteros version

* Update mikrotik.py

* Update mikrotik.py

* Fix trailing whitespace

* Update mikrotik.py

* Update mikrotik.py

homeassistant/components/device_tracker/mikrotik.py

@@ -16,7 +16,7 @@ from homeassistant.components.device_tracker import (
 from homeassistant.const import (
     CONF_HOST, CONF_PASSWORD, CONF_USERNAME, CONF_PORT, CONF_SSL, CONF_METHOD)
 
-REQUIREMENTS = ['librouteros==2.1.1']
+REQUIREMENTS = ['librouteros==2.2.0']
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -144,12 +144,18 @@ class MikrotikScanner(DeviceScanner):
                 librouteros.exceptions.MultiTrapError,
                 librouteros.exceptions.ConnectionError) as api_error:
             _LOGGER.error("Connection error: %s", api_error)
-
         return self.connected
 
     def scan_devices(self):
         """Scan for new devices and return a list with found device MACs."""
-        self._update_info()
+        import librouteros
+        try:
+            self._update_info()
+        except (librouteros.exceptions.TrapError,
+                librouteros.exceptions.MultiTrapError,
+                librouteros.exceptions.ConnectionError) as api_error:
+            _LOGGER.error("Connection error: %s", api_error)
+            self.connect_to_device()
         return [device for device in self.last_results]
 
     def get_device_name(self, device):

requirements_all.txt

@@ -570,7 +570,7 @@ libpurecoollink==0.4.2
 libpyfoscam==1.0
 
 # homeassistant.components.device_tracker.mikrotik
-librouteros==2.1.1
+librouteros==2.2.0
 
 # homeassistant.components.media_player.soundtouch
 libsoundtouch==0.7.2