Updated sensor to work with new version of hass

sensor.py

@@ -1,13 +1,10 @@
 """Platform for sensor integration."""
-import aiohttp
 import async_timeout
-import asyncio
 import json
 import logging
 import voluptuous as vol
 
 from datetime import timedelta
-from random import randrange
 
 import homeassistant.helpers.config_validation as cv
 
@@ -20,16 +17,14 @@ from homeassistant.const import (
     ATTR_LONGITUDE,
     CONF_MONITORED_CONDITIONS,
     DEVICE_CLASS_HUMIDITY,
-    DEVICE_CLASS_PRESSURE,
     DEVICE_CLASS_TEMPERATURE,
     TEMP_CELSIUS,
     HTTP_BAD_REQUEST,
-    UNIT_PERCENTAGE,
+    PERCENTAGE,
 )
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.helpers.entity import Entity
-from homeassistant.helpers.update_coordinator import DataUpdateCoordinator, UpdateFailed
-from homeassistant.helpers.event import async_call_later, async_track_utc_time_change
+from homeassistant.helpers.update_coordinator import DataUpdateCoordinator
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
 _LOGGER = logging.getLogger(__name__)
@@ -39,7 +34,7 @@ CONF_STATION = "station"
 SENSOR_TYPES = {
     "temperature": ["Temperature", TEMP_CELSIUS, DEVICE_CLASS_TEMPERATURE],
     "precipitation": ["Precipitation", "mm", None],
-    "humidity": ["Humidity", UNIT_PERCENTAGE, DEVICE_CLASS_HUMIDITY],
+    "humidity": ["Humidity", PERCENTAGE, DEVICE_CLASS_HUMIDITY],
 }
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
@@ -66,7 +61,6 @@ CONFIG_CONDITIONS = {
 
 async def async_setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the sensor platform."""
-
     async def async_update_data():
         data = {}
         _LOGGER.info("Update MeteoSwiss data.")
@@ -102,7 +96,7 @@ async def async_setup_platform(hass, config, add_entities, discovery_info=None):
         _LOGGER,
         name="MeteoSwissData",
         update_method=async_update_data,
-        update_interval=timedelta(minutes=9),
+        update_interval=timedelta(minutes=10),
     )
     await coordinator.async_refresh()
     station = config.get(CONF_STATION)
@@ -145,6 +139,7 @@ class MeteoSwissSensor(Entity):
 
     @property
     def device_state_attributes(self):
+        """Return device attributes."""
         attributes = {
             ATTR_ATTRIBUTION: "Data provided by MeteoSwiss via data.geo.admin.ch.",
             ATTR_TIME: self._coordinator.data[self._station][self._monitored_condition][