Bump ruff to 0.4.2 (#116201)

* Bump ruff to 0.4.2

* review comments

.pre-commit-config.yaml

@@ -1,6 +1,6 @@
 repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.4.1
+    rev: v0.4.2
     hooks:
       - id: ruff
         args:

homeassistant/components/emoncms_history/__init__.py

@@ -86,8 +86,8 @@ def setup(hass: HomeAssistant, config: ConfigType) -> bool:
                 continue
 
         if payload_dict:
-            payload = "{%s}" % ",".join(
+            payload = "{{{}}}".format(
-                f"{key}:{val}" for key, val in payload_dict.items()
+                ",".join(f"{key}:{val}" for key, val in payload_dict.items())
             )
 
             send_data(

homeassistant/components/lamarzocco/coordinator.py

@@ -147,7 +147,7 @@ class LaMarzoccoUpdateCoordinator(DataUpdateCoordinator[None]):
             raise ConfigEntryAuthFailed(msg) from ex
         except RequestNotSuccessful as ex:
             _LOGGER.debug(ex, exc_info=True)
-            raise UpdateFailed("Querying API failed. Error: %s" % ex) from ex
+            raise UpdateFailed(f"Querying API failed. Error: {ex}") from ex
 
     def async_get_ble_device(self) -> BLEDevice | None:
         """Get a Bleak Client for the machine."""

homeassistant/components/nest/media_source.py

@@ -322,7 +322,7 @@ class NestMediaSource(MediaSource):
         devices = async_get_media_source_devices(self.hass)
         if not (device := devices.get(media_id.device_id)):
             raise Unresolvable(
-                "Unable to find device with identifier: %s" % item.identifier
+                f"Unable to find device with identifier: {item.identifier}"
             )
         if not media_id.event_token:
             # The device resolves to the most recent event if available
@@ -330,7 +330,7 @@ class NestMediaSource(MediaSource):
                 last_event_id := await _async_get_recent_event_id(media_id, device)
             ):
                 raise Unresolvable(
-                    "Unable to resolve recent event for device: %s" % item.identifier
+                    f"Unable to resolve recent event for device: {item.identifier}"
                 )
             media_id = last_event_id
 
@@ -377,7 +377,7 @@ class NestMediaSource(MediaSource):
         # Browse either a device or events within a device
         if not (device := devices.get(media_id.device_id)):
             raise BrowseError(
-                "Unable to find device with identiifer: %s" % item.identifier
+                f"Unable to find device with identiifer: {item.identifier}"
             )
         # Clip previews are a session with multiple possible event types (e.g.
         # person, motion, etc) and a single mp4
@@ -399,7 +399,7 @@ class NestMediaSource(MediaSource):
             # Browse a specific event
             if not (single_clip := clips.get(media_id.event_token)):
                 raise BrowseError(
-                    "Unable to find event with identiifer: %s" % item.identifier
+                    f"Unable to find event with identiifer: {item.identifier}"
                 )
             return _browse_clip_preview(media_id, device, single_clip)
 
@@ -419,7 +419,7 @@ class NestMediaSource(MediaSource):
         # Browse a specific event
         if not (single_image := images.get(media_id.event_token)):
             raise BrowseError(
-                "Unable to find event with identiifer: %s" % item.identifier
+                f"Unable to find event with identiifer: {item.identifier}"
             )
         return _browse_image_event(media_id, device, single_image)
 

homeassistant/components/netio/switch.py

@@ -165,7 +165,7 @@ class NetioSwitch(SwitchEntity):
     def _set(self, value):
         val = list("uuuu")
         val[int(self.outlet) - 1] = "1" if value else "0"
-        self.netio.get("port list %s" % "".join(val))
+        self.netio.get("port list {}".format("".join(val)))
         self.netio.states[int(self.outlet) - 1] = value
         self.schedule_update_ha_state()
 

homeassistant/components/rss_feed_template/__init__.py

@@ -91,9 +91,7 @@ class RssView(HomeAssistantView):
         response += '<rss version="2.0">\n'
         response += "  <channel>\n"
         if self._title is not None:
-            response += "    <title>%s</title>\n" % escape(
+            response += f"    <title>{escape(self._title.async_render(parse_result=False))}</title>\n"
-                self._title.async_render(parse_result=False)
-            )
         else:
             response += "    <title>Home Assistant</title>\n"
 

homeassistant/components/stream/worker.py

@@ -592,7 +592,7 @@ def stream_worker(
     except av.AVError as ex:
         container.close()
         raise StreamWorkerError(
-            "Error demuxing stream while finding first packet: %s" % str(ex)
+            f"Error demuxing stream while finding first packet: {str(ex)}"
         ) from ex
 
     muxer = StreamMuxer(
@@ -617,7 +617,7 @@ def stream_worker(
             except StopIteration as ex:
                 raise StreamEndedError("Stream ended; no additional packets") from ex
             except av.AVError as ex:
-                raise StreamWorkerError("Error demuxing stream: %s" % str(ex)) from ex
+                raise StreamWorkerError(f"Error demuxing stream: {str(ex)}") from ex
 
             muxer.mux_packet(packet)
 

homeassistant/components/tedee/coordinator.py

@@ -100,9 +100,9 @@ class TedeeApiCoordinator(DataUpdateCoordinator[dict[int, TedeeLock]]):
 
         except TedeeDataUpdateException as ex:
             _LOGGER.debug("Error while updating data: %s", str(ex))
-            raise UpdateFailed("Error while updating data: %s" % str(ex)) from ex
+            raise UpdateFailed(f"Error while updating data: {str(ex)}") from ex
         except (TedeeClientException, TimeoutError) as ex:
-            raise UpdateFailed("Querying API failed. Error: %s" % str(ex)) from ex
+            raise UpdateFailed(f"Querying API failed. Error: {str(ex)}") from ex
 
     def _async_add_remove_locks(self) -> None:
         """Add new locks, remove non-existing locks."""

homeassistant/components/tedee/lock.py

@@ -90,7 +90,7 @@ class TedeeLockEntity(TedeeEntity, LockEntity):
             await self.coordinator.async_request_refresh()
         except (TedeeClientException, Exception) as ex:
             raise HomeAssistantError(
-                "Failed to unlock the door. Lock %s" % self._lock.lock_id
+                f"Failed to unlock the door. Lock {self._lock.lock_id}"
             ) from ex
 
     async def async_lock(self, **kwargs: Any) -> None:
@@ -103,7 +103,7 @@ class TedeeLockEntity(TedeeEntity, LockEntity):
             await self.coordinator.async_request_refresh()
         except (TedeeClientException, Exception) as ex:
             raise HomeAssistantError(
-                "Failed to lock the door. Lock %s" % self._lock.lock_id
+                f"Failed to lock the door. Lock {self._lock.lock_id}"
             ) from ex
 
 
@@ -125,5 +125,5 @@ class TedeeLockWithLatchEntity(TedeeLockEntity):
             await self.coordinator.async_request_refresh()
         except (TedeeClientException, Exception) as ex:
             raise HomeAssistantError(
-                "Failed to unlatch the door. Lock %s" % self._lock.lock_id
+                f"Failed to unlatch the door. Lock {self._lock.lock_id}"
             ) from ex

homeassistant/components/verisure/lock.py

@@ -112,7 +112,7 @@ class VerisureDoorlock(CoordinatorEntity[VerisureDataUpdateCoordinator], LockEnt
         digits = self.coordinator.entry.options.get(
             CONF_LOCK_CODE_DIGITS, DEFAULT_LOCK_CODE_DIGITS
         )
-        return "^\\d{%s}$" % digits
+        return f"^\\d{{{digits}}}$"
 
     @property
     def is_locked(self) -> bool:

homeassistant/helpers/device_registry.py

@@ -615,7 +615,7 @@ class DeviceRegistry(BaseRegistry[dict[str, list[dict[str, Any]]]]):
             return name.format(**translation_placeholders)
         except KeyError as err:
             if get_release_channel() is not ReleaseChannel.STABLE:
-                raise HomeAssistantError("Missing placeholder %s" % err) from err
+                raise HomeAssistantError(f"Missing placeholder {err}") from err
             report_issue = async_suggest_report_issue(
                 self.hass, integration_domain=domain
             )

homeassistant/helpers/entity.py

@@ -660,7 +660,7 @@ class Entity(
         except KeyError as err:
             if not self._name_translation_placeholders_reported:
                 if get_release_channel() is not ReleaseChannel.STABLE:
-                    raise HomeAssistantError("Missing placeholder %s" % err) from err
+                    raise HomeAssistantError(f"Missing placeholder {err}") from err
                 report_issue = self._suggest_report_issue()
                 _LOGGER.warning(
                     (

homeassistant/util/uuid.py

@@ -9,4 +9,4 @@ def random_uuid_hex() -> str:
     This uuid should not be used for cryptographically secure
     operations.
     """
-    return "%032x" % getrandbits(32 * 4)
+    return f"{getrandbits(32 * 4):032x}"

pyproject.toml

@@ -659,7 +659,7 @@ filterwarnings = [
 ]
 
 [tool.ruff]
-required-version = ">=0.4.1"
+required-version = ">=0.4.2"
 
 [tool.ruff.lint]
 select = [

requirements_test_pre_commit.txt

@@ -1,5 +1,5 @@
 # Automatically generated from .pre-commit-config.yaml by gen_requirements_all.py, do not edit
 
 codespell==2.2.6
-ruff==0.4.1
+ruff==0.4.2
 yamllint==1.35.1

tests/components/freebox/conftest.py

@@ -108,8 +108,7 @@ def mock_router_bridge_mode(mock_device_registry_devices, router):
 
     router().lan.get_hosts_list = AsyncMock(
         side_effect=HttpRequestError(
-            "Request failed (APIResponse: %s)"
+            f"Request failed (APIResponse: {json.dumps(DATA_LAN_GET_HOSTS_LIST_MODE_BRIDGE)})"
-            % json.dumps(DATA_LAN_GET_HOSTS_LIST_MODE_BRIDGE)
         )
     )
 

tests/components/nest/test_media_source.py

@@ -399,7 +399,7 @@ async def test_camera_event(
 
     client = await hass_client()
     response = await client.get(media.url)
-    assert response.status == HTTPStatus.OK, "Response not matched: %s" % response
+    assert response.status == HTTPStatus.OK, f"Response not matched: {response}"
     contents = await response.read()
     assert contents == IMAGE_BYTES_FROM_EVENT
 
@@ -572,7 +572,7 @@ async def test_multiple_image_events_in_session(
 
     client = await hass_client()
     response = await client.get(media.url)
-    assert response.status == HTTPStatus.OK, "Response not matched: %s" % response
+    assert response.status == HTTPStatus.OK, f"Response not matched: {response}"
     contents = await response.read()
     assert contents == IMAGE_BYTES_FROM_EVENT + b"-2"
 
@@ -585,7 +585,7 @@ async def test_multiple_image_events_in_session(
 
     client = await hass_client()
     response = await client.get(media.url)
-    assert response.status == HTTPStatus.OK, "Response not matched: %s" % response
+    assert response.status == HTTPStatus.OK, f"Response not matched: {response}"
     contents = await response.read()
     assert contents == IMAGE_BYTES_FROM_EVENT + b"-1"
 
@@ -673,7 +673,7 @@ async def test_multiple_clip_preview_events_in_session(
 
     client = await hass_client()
     response = await client.get(media.url)
-    assert response.status == HTTPStatus.OK, "Response not matched: %s" % response
+    assert response.status == HTTPStatus.OK, f"Response not matched: {response}"
     contents = await response.read()
     assert contents == IMAGE_BYTES_FROM_EVENT
 
@@ -685,7 +685,7 @@ async def test_multiple_clip_preview_events_in_session(
     assert media.mime_type == "video/mp4"
 
     response = await client.get(media.url)
-    assert response.status == HTTPStatus.OK, "Response not matched: %s" % response
+    assert response.status == HTTPStatus.OK, f"Response not matched: {response}"
     contents = await response.read()
     assert contents == IMAGE_BYTES_FROM_EVENT
 
@@ -888,7 +888,7 @@ async def test_camera_event_clip_preview(
 
     client = await hass_client()
     response = await client.get(media.url)
-    assert response.status == HTTPStatus.OK, "Response not matched: %s" % response
+    assert response.status == HTTPStatus.OK, f"Response not matched: {response}"
     contents = await response.read()
     assert contents == mp4.getvalue()
 
@@ -896,7 +896,7 @@ async def test_camera_event_clip_preview(
     response = await client.get(
         f"/api/nest/event_media/{device.id}/{event_identifier}/thumbnail"
     )
-    assert response.status == HTTPStatus.OK, "Response not matched: %s" % response
+    assert response.status == HTTPStatus.OK, f"Response not matched: {response}"
     await response.read()  # Animated gif format not tested
 
 
@@ -907,9 +907,7 @@ async def test_event_media_render_invalid_device_id(
     await setup_platform()
     client = await hass_client()
     response = await client.get("/api/nest/event_media/invalid-device-id")
-    assert response.status == HTTPStatus.NOT_FOUND, (
+    assert response.status == HTTPStatus.NOT_FOUND, f"Response not matched: {response}"
-        "Response not matched: %s" % response
-    )
 
 
 async def test_event_media_render_invalid_event_id(
@@ -924,9 +922,7 @@ async def test_event_media_render_invalid_event_id(
 
     client = await hass_client()
     response = await client.get(f"/api/nest/event_media/{device.id}/invalid-event-id")
-    assert response.status == HTTPStatus.NOT_FOUND, (
+    assert response.status == HTTPStatus.NOT_FOUND, f"Response not matched: {response}"
-        "Response not matched: %s" % response
-    )
 
 
 async def test_event_media_failure(
@@ -981,9 +977,7 @@ async def test_event_media_failure(
     # Media is not available to be fetched
     client = await hass_client()
     response = await client.get(media.url)
-    assert response.status == HTTPStatus.NOT_FOUND, (
+    assert response.status == HTTPStatus.NOT_FOUND, f"Response not matched: {response}"
-        "Response not matched: %s" % response
-    )
 
 
 async def test_media_permission_unauthorized(
@@ -1011,9 +1005,9 @@ async def test_media_permission_unauthorized(
 
     client = await hass_client()
     response = await client.get(media_url)
-    assert response.status == HTTPStatus.UNAUTHORIZED, (
+    assert (
-        "Response not matched: %s" % response
+        response.status == HTTPStatus.UNAUTHORIZED
-    )
+    ), f"Response not matched: {response}"
 
 
 async def test_multiple_devices(
@@ -1157,7 +1151,7 @@ async def test_media_store_persistence(
     # Fetch event media
     client = await hass_client()
     response = await client.get(media.url)
-    assert response.status == HTTPStatus.OK, "Response not matched: %s" % response
+    assert response.status == HTTPStatus.OK, f"Response not matched: {response}"
     contents = await response.read()
     assert contents == IMAGE_BYTES_FROM_EVENT
 
@@ -1198,7 +1192,7 @@ async def test_media_store_persistence(
 
     # Verify media exists
     response = await client.get(media.url)
-    assert response.status == HTTPStatus.OK, "Response not matched: %s" % response
+    assert response.status == HTTPStatus.OK, f"Response not matched: {response}"
     contents = await response.read()
     assert contents == IMAGE_BYTES_FROM_EVENT
 
@@ -1254,9 +1248,7 @@ async def test_media_store_save_filesystem_error(
     # We fail to retrieve the media from the server since the origin filesystem op failed
     client = await hass_client()
     response = await client.get(media.url)
-    assert response.status == HTTPStatus.NOT_FOUND, (
+    assert response.status == HTTPStatus.NOT_FOUND, f"Response not matched: {response}"
-        "Response not matched: %s" % response
-    )
 
 
 async def test_media_store_load_filesystem_error(
@@ -1307,9 +1299,9 @@ async def test_media_store_load_filesystem_error(
         response = await client.get(
             f"/api/nest/event_media/{device.id}/{event_identifier}"
         )
-        assert response.status == HTTPStatus.NOT_FOUND, (
+        assert (
-            "Response not matched: %s" % response
+            response.status == HTTPStatus.NOT_FOUND
-        )
+        ), f"Response not matched: {response}"
 
 
 @pytest.mark.parametrize(("device_traits", "cache_size"), [(BATTERY_CAMERA_TRAITS, 5)])
@@ -1384,7 +1376,7 @@ async def test_camera_event_media_eviction(
     for i in reversed(range(3, 8)):
         child_event = next(child_events)
         response = await client.get(f"/api/nest/event_media/{child_event.identifier}")
-        assert response.status == HTTPStatus.OK, "Response not matched: %s" % response
+        assert response.status == HTTPStatus.OK, f"Response not matched: {response}"
         contents = await response.read()
         assert contents == f"image-bytes-{i}".encode()
         await hass.async_block_till_done()
@@ -1444,7 +1436,7 @@ async def test_camera_image_resize(
 
     client = await hass_client()
     response = await client.get(browse.thumbnail)
-    assert response.status == HTTPStatus.OK, "Response not matched: %s" % response
+    assert response.status == HTTPStatus.OK, f"Response not matched: {response}"
     contents = await response.read()
     assert contents == IMAGE_BYTES_FROM_EVENT
 

tests/components/rainbird/conftest.py

@@ -187,7 +187,7 @@ def aioclient_mock(hass: HomeAssistant) -> Generator[AiohttpClientMocker, None,
 def rainbird_json_response(result: dict[str, str]) -> bytes:
     """Create a fake API response."""
     return encryption.encrypt(
-        '{"jsonrpc": "2.0", "result": %s, "id": 1} ' % json.dumps(result),
+        f'{{"jsonrpc": "2.0", "result": {json.dumps(result)}, "id": 1}} ',
         PASSWORD,
     )
 

tests/conftest.py

@@ -499,7 +499,7 @@ def aiohttp_client(
         elif isinstance(__param, BaseTestServer):
             client = TestClient(__param, loop=loop, **kwargs)
         else:
-            raise TypeError("Unknown argument type: %r" % type(__param))
+            raise TypeError(f"Unknown argument type: {type(__param)!r}")
 
         await client.start_server()
         clients.append(client)
@@ -542,8 +542,8 @@ async def hass(
         else:
             exceptions.append(
                 Exception(
-                    "Received exception handler without exception, but with message: %s"
+                    "Received exception handler without exception, "
-                    % context["message"]
+                    f"but with message: {context["message"]}"
                 )
             )
         orig_exception_handler(loop, context)

tests/helpers/test_template.py

@@ -707,7 +707,7 @@ def test_multiply(hass: HomeAssistant) -> None:
     for inp, out in tests.items():
         assert (
             template.Template(
-                "{{ %s | multiply(10) | round }}" % inp, hass
+                f"{{{{ {inp} | multiply(10) | round }}}}", hass
             ).async_render()
             == out
         )
@@ -775,7 +775,9 @@ def test_sine(hass: HomeAssistant) -> None:
 
     for value, expected in tests:
         assert (
-            template.Template("{{ %s | sin | round(3) }}" % value, hass).async_render()
+            template.Template(
+                f"{{{{ {value} | sin | round(3) }}}}", hass
+            ).async_render()
             == expected
         )
         assert render(hass, f"{{{{ sin({value}) | round(3) }}}}") == expected
@@ -805,7 +807,9 @@ def test_cos(hass: HomeAssistant) -> None:
 
     for value, expected in tests:
         assert (
-            template.Template("{{ %s | cos | round(3) }}" % value, hass).async_render()
+            template.Template(
+                f"{{{{ {value} | cos | round(3) }}}}", hass
+            ).async_render()
             == expected
         )
         assert render(hass, f"{{{{ cos({value}) | round(3) }}}}") == expected
@@ -835,7 +839,9 @@ def test_tan(hass: HomeAssistant) -> None:
 
     for value, expected in tests:
         assert (
-            template.Template("{{ %s | tan | round(3) }}" % value, hass).async_render()
+            template.Template(
+                f"{{{{ {value} | tan | round(3) }}}}", hass
+            ).async_render()
             == expected
         )
         assert render(hass, f"{{{{ tan({value}) | round(3) }}}}") == expected
@@ -865,7 +871,9 @@ def test_sqrt(hass: HomeAssistant) -> None:
 
     for value, expected in tests:
         assert (
-            template.Template("{{ %s | sqrt | round(3) }}" % value, hass).async_render()
+            template.Template(
+                f"{{{{ {value} | sqrt | round(3) }}}}", hass
+            ).async_render()
             == expected
         )
         assert render(hass, f"{{{{ sqrt({value}) | round(3) }}}}") == expected
@@ -895,7 +903,9 @@ def test_arc_sine(hass: HomeAssistant) -> None:
 
     for value, expected in tests:
         assert (
-            template.Template("{{ %s | asin | round(3) }}" % value, hass).async_render()
+            template.Template(
+                f"{{{{ {value} | asin | round(3) }}}}", hass
+            ).async_render()
             == expected
         )
         assert render(hass, f"{{{{ asin({value}) | round(3) }}}}") == expected
@@ -909,7 +919,9 @@ def test_arc_sine(hass: HomeAssistant) -> None:
 
     for value in invalid_tests:
         with pytest.raises(TemplateError):
-            template.Template("{{ %s | asin | round(3) }}" % value, hass).async_render()
+            template.Template(
+                f"{{{{ {value} | asin | round(3) }}}}", hass
+            ).async_render()
         with pytest.raises(TemplateError):
             assert render(hass, f"{{{{ asin({value}) | round(3) }}}}")
 
@@ -932,7 +944,9 @@ def test_arc_cos(hass: HomeAssistant) -> None:
 
     for value, expected in tests:
         assert (
-            template.Template("{{ %s | acos | round(3) }}" % value, hass).async_render()
+            template.Template(
+                f"{{{{ {value} | acos | round(3) }}}}", hass
+            ).async_render()
             == expected
         )
         assert render(hass, f"{{{{ acos({value}) | round(3) }}}}") == expected
@@ -946,7 +960,9 @@ def test_arc_cos(hass: HomeAssistant) -> None:
 
     for value in invalid_tests:
         with pytest.raises(TemplateError):
-            template.Template("{{ %s | acos | round(3) }}" % value, hass).async_render()
+            template.Template(
+                f"{{{{ {value} | acos | round(3) }}}}", hass
+            ).async_render()
         with pytest.raises(TemplateError):
             assert render(hass, f"{{{{ acos({value}) | round(3) }}}}")
 
@@ -973,7 +989,9 @@ def test_arc_tan(hass: HomeAssistant) -> None:
 
     for value, expected in tests:
         assert (
-            template.Template("{{ %s | atan | round(3) }}" % value, hass).async_render()
+            template.Template(
+                f"{{{{ {value} | atan | round(3) }}}}", hass
+            ).async_render()
             == expected
         )
         assert render(hass, f"{{{{ atan({value}) | round(3) }}}}") == expected
@@ -1122,7 +1140,7 @@ def test_timestamp_local(hass: HomeAssistant) -> None:
 
     for inp, out in tests:
         assert (
-            template.Template("{{ %s | timestamp_local }}" % inp, hass).async_render()
+            template.Template(f"{{{{ {inp} | timestamp_local }}}}", hass).async_render()
             == out
         )
 
@@ -1133,7 +1151,7 @@ def test_timestamp_local(hass: HomeAssistant) -> None:
 
     for inp in invalid_tests:
         with pytest.raises(TemplateError):
-            template.Template("{{ %s | timestamp_local }}" % inp, hass).async_render()
+            template.Template(f"{{{{ {inp} | timestamp_local }}}}", hass).async_render()
 
     # Test handling of default return value
     assert render(hass, "{{ None | timestamp_local(1) }}") == 1
@@ -1616,7 +1634,7 @@ def test_ordinal(hass: HomeAssistant) -> None:
 
     for value, expected in tests:
         assert (
-            template.Template("{{ %s | ordinal }}" % value, hass).async_render()
+            template.Template(f"{{{{ {value} | ordinal }}}}", hass).async_render()
             == expected
         )
 
@@ -1631,7 +1649,7 @@ def test_timestamp_utc(hass: HomeAssistant) -> None:
 
     for inp, out in tests:
         assert (
-            template.Template("{{ %s | timestamp_utc }}" % inp, hass).async_render()
+            template.Template(f"{{{{ {inp} | timestamp_utc }}}}", hass).async_render()
             == out
         )
 
@@ -1642,7 +1660,7 @@ def test_timestamp_utc(hass: HomeAssistant) -> None:
 
     for inp in invalid_tests:
         with pytest.raises(TemplateError):
-            template.Template("{{ %s | timestamp_utc }}" % inp, hass).async_render()
+            template.Template(f"{{{{ {inp} | timestamp_utc }}}}", hass).async_render()
 
     # Test handling of default return value
     assert render(hass, "{{ None | timestamp_utc(1) }}") == 1
@@ -4618,7 +4636,9 @@ def test_closest_function_invalid_state(hass: HomeAssistant) -> None:
 
     for state in ("states.zone.non_existing", '"zone.non_existing"'):
         assert (
-            template.Template("{{ closest(%s, states) }}" % state, hass).async_render()
+            template.Template(
+                f"{{{{ closest({state}, states) }}}}", hass
+            ).async_render()
             is None
         )