Use literal string interpolation in integrations R-S (f-strings) (#26392)

homeassistant/components/roku/__init__.py

@@ -78,7 +78,7 @@ def scan_for_rokus(hass):
             "Name: {0}<br />Host: {1}<br />".format(
                 r_info.userdevicename
                 if r_info.userdevicename
-                else "{} {}".format(r_info.modelname, r_info.serial_num),
+                else f"{r_info.modelname} {r_info.serial_num}",
                 roku.host,
             )
         )

homeassistant/components/roku/media_player.py

@@ -92,7 +92,7 @@ class RokuDevice(MediaPlayerDevice):
         """Return the name of the device."""
         if self._device_info.user_device_name:
             return self._device_info.user_device_name
-        return "Roku {}".format(self._device_info.serial_num)
+        return f"Roku {self._device_info.serial_num}"
 
     @property
     def state(self):

homeassistant/components/roku/remote.py

@@ -36,7 +36,7 @@ class RokuRemote(remote.RemoteDevice):
         """Return the name of the device."""
         if self._device_info.user_device_name:
             return self._device_info.user_device_name
-        return "Roku {}".format(self._device_info.serial_num)
+        return f"Roku {self._device_info.serial_num}"
 
     @property
     def unique_id(self):