Format Python source and tests

lookup.py

@@ -346,7 +346,9 @@ def validate_coordinates(lat: float, lon: float) -> str | None:
 
 
 @app.route("/")
-def index() -> str | Response | tuple[Response, int] | tuple[Response, int, dict[str, str]]:
+def index() -> (
+    str | Response | tuple[Response, int] | tuple[Response, int, dict[str, str]]
+):
     """Index page."""
     t0 = time()
     database.session.execute(text("SELECT 1"))
@@ -364,12 +366,15 @@ def index() -> str | Response | tuple[Response, int] | tuple[Response, int, dict
         lat = parse_coordinate(lat_str)
         lon = parse_coordinate(lon_str)
     except ValueError:
-        return jsonify(
-            coords={"lat": lat_str, "lon": lon_str},
-            error="Invalid coordinate format. "
-            + "Please use decimal degrees (e.g., 56.099600) "
-            + "or DMS format (e.g., 56°5'58.56\"N)",
-        ), 400
+        return (
+            jsonify(
+                coords={"lat": lat_str, "lon": lon_str},
+                error="Invalid coordinate format. "
+                + "Please use decimal degrees (e.g., 56.099600) "
+                + "or DMS format (e.g., 56°5'58.56\"N)",
+            ),
+            400,
+        )
 
     if error_msg := validate_coordinates(lat, lon):
         return jsonify(coords={"lat": lat_str, "lon": lon_str}, error=error_msg), 400
@@ -401,7 +406,10 @@ def index() -> str | Response | tuple[Response, int] | tuple[Response, int, dict
             503,
         )
     except requests.exceptions.RequestException:
-        return jsonify(error="Could not connect to Wikidata, please try again later"), 503
+        return (
+            jsonify(error="Could not connect to Wikidata, please try again later"),
+            503,
+        )
     result.pop("element", None)
     result.pop("geojson", None)
     if logging_enabled: