Move imports to top for netdata (#29362)

homeassistant/components/netdata/sensor.py

@@ -2,6 +2,8 @@
 from datetime import timedelta
 import logging
 
+from netdata import Netdata
+from netdata.exceptions import NetdataError
 import voluptuous as vol
 
 from homeassistant.components.sensor import PLATFORM_SCHEMA
@@ -53,7 +55,6 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
 
 async def async_setup_platform(hass, config, async_add_entities, discovery_info=None):
     """Set up the Netdata sensor."""
-    from netdata import Netdata
 
     name = config.get(CONF_NAME)
     host = config.get(CONF_HOST)
@@ -154,7 +155,6 @@ class NetdataData:
     @Throttle(MIN_TIME_BETWEEN_UPDATES)
     async def async_update(self):
         """Get the latest data from the Netdata REST API."""
-        from netdata.exceptions import NetdataError
 
         try:
             await self.api.get_allmetrics()