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

homeassistant/components/rfxtrx/__init__.py

@@ -106,7 +106,7 @@ def setup(hass, config):
             slugify(event.device.id_string.lower()),
             event.device.__class__.__name__,
             event.device.subtype,
-            "".join("{0:02x}".format(x) for x in event.data),
+            "".join(f"{x:02x}" for x in event.data),
         )
 
         # Callback to HA registered components.
@@ -270,7 +270,7 @@ def get_new_device(event, config, device):
     if not config[ATTR_AUTOMATIC_ADD]:
         return
 
-    pkt_id = "".join("{0:02x}".format(x) for x in event.data)
+    pkt_id = "".join(f"{x:02x}" for x in event.data)
     _LOGGER.debug(
         "Automatic add %s rfxtrx device (Class: %s Sub: %s Packet_id: %s)",
         device_id,

homeassistant/components/rfxtrx/binary_sensor.py

@@ -116,7 +116,7 @@ def setup_platform(hass, config, add_entities, discovery_info=None):
                     poss_id = slugify(poss_dev.event.device.id_string.lower())
                     _LOGGER.debug("Found possible matching device ID: %s", poss_id)
 
-            pkt_id = "".join("{0:02x}".format(x) for x in event.data)
+            pkt_id = "".join(f"{x:02x}" for x in event.data)
             sensor = RfxtrxBinarySensor(event, pkt_id)
             sensor.hass = hass
             rfxtrx.RFX_DEVICES[device_id] = sensor

homeassistant/components/rfxtrx/sensor.py

@@ -98,7 +98,7 @@ def setup_platform(hass, config, add_entities, discovery_info=None):
         if not config[CONF_AUTOMATIC_ADD]:
             return
 
-        pkt_id = "".join("{0:02x}".format(x) for x in event.data)
+        pkt_id = "".join(f"{x:02x}" for x in event.data)
         _LOGGER.info("Automatic add rfxtrx.sensor: %s", pkt_id)
 
         data_type = ""
@@ -141,7 +141,7 @@ class RfxtrxSensor(Entity):
     @property
     def name(self):
         """Get the name of the sensor."""
-        return "{} {}".format(self._name, self.data_type)
+        return f"{self._name} {self.data_type}"
 
     @property
     def device_state_attributes(self):