Parse html in the executor for scrape sensors (#41987)

homeassistant/components/scrape/sensor.py

@@ -118,17 +118,11 @@ class ScrapeSensor(Entity):
         """Return the state of the device."""
         return self._state
 
-    async def async_update(self):
+    def _extract_value(self):
-        """Get the latest data from the source and updates the state."""
+        """Parse the html extraction in the executor."""
-        await self.rest.async_update()
-        if self.rest.data is None:
-            _LOGGER.error("Unable to retrieve data for %s", self.name)
-            return
-
         raw_data = BeautifulSoup(self.rest.data, "html.parser")
         _LOGGER.debug(raw_data)
 
-        try:
         if self._attr is not None:
             value = raw_data.select(self._select)[self._index][self._attr]
         else:
@@ -138,6 +132,17 @@ class ScrapeSensor(Entity):
             else:
                 value = tag.text
         _LOGGER.debug(value)
+        return value
+
+    async def async_update(self):
+        """Get the latest data from the source and updates the state."""
+        await self.rest.async_update()
+        if self.rest.data is None:
+            _LOGGER.error("Unable to retrieve data for %s", self.name)
+            return
+
+        try:
+            value = await self.hass.async_add_executor_job(self._extract_value)
         except IndexError:
             _LOGGER.error("Unable to extract data from HTML for %s", self.name)
             return