Use literal string interpolation in integrations H-J (f-strings) (#26380)

homeassistant/components/ialarm/alarm_control_panel.py

@@ -28,7 +28,7 @@ def no_application_protocol(value):
     """Validate that value is without the application protocol."""
     protocol_separator = "://"
     if not value or protocol_separator in value:
-        raise vol.Invalid("Invalid host, {} is not allowed".format(protocol_separator))
+        raise vol.Invalid(f"Invalid host, {protocol_separator} is not allowed")
 
     return value
 
@@ -52,7 +52,7 @@ def setup_platform(hass, config, add_entities, discovery_info=None):
     password = config.get(CONF_PASSWORD)
     host = config.get(CONF_HOST)
 
-    url = "http://{}".format(host)
+    url = f"http://{host}"
     ialarm = IAlarmPanel(name, code, username, password, url)
     add_entities([ialarm], True)