diff --git a/src/traffic/algorithms/cpa.py b/src/traffic/algorithms/cpa.py
index e800fc6d..0f91f4f4 100644
--- a/src/traffic/algorithms/cpa.py
+++ b/src/traffic/algorithms/cpa.py
@@ -35,12 +35,12 @@ def combinations(
             continue
 
         clipped = t_.query(
-            f'x >= {flight.min("x")} - {lateral_separation} and '
-            f'x <= {flight.max("x")} + {lateral_separation} and '
-            f'y >= {flight.min("y")} - {lateral_separation} and '
-            f'y <= {flight.max("y")} + {lateral_separation} and '
-            f'altitude >= {flight.min("altitude")} - {vertical_separation} and '
-            f'altitude <= {flight.max("altitude")} + {vertical_separation} and '
+            f"x >= {flight.min('x')} - {lateral_separation} and "
+            f"x <= {flight.max('x')} + {lateral_separation} and "
+            f"y >= {flight.min('y')} - {lateral_separation} and "
+            f"y <= {flight.max('y')} + {lateral_separation} and "
+            f"altitude >= {flight.min('altitude')} - {vertical_separation} and "
+            f"altitude <= {flight.max('altitude')} + {vertical_separation} and "
             f'timestamp <= "{flight.stop}" and '
             f'timestamp >= "{flight.start}" '
         )
diff --git a/src/traffic/algorithms/generation.py b/src/traffic/algorithms/generation.py
index 7f2a15b5..6ed17347 100644
--- a/src/traffic/algorithms/generation.py
+++ b/src/traffic/algorithms/generation.py
@@ -197,9 +197,9 @@ def build_traffic(
                 return Traffic(df).compute_latlon_from_xy(projection)
                 # df = compute_latlon_from_xy(df, projection=projection)
             if set(["track", "groundspeed"]).issubset(set(self.features)):
-                assert (
-                    coordinates is not None
-                ), "coordinates attribute shouldn't be None"
+                assert coordinates is not None, (
+                    "coordinates attribute shouldn't be None"
+                )
                 # integrate lat/lon in df
                 df = compute_latlon_from_trackgs(
                     df, n_samples, n_obs, coordinates, forward=forward
diff --git a/src/traffic/core/distance.py b/src/traffic/core/distance.py
index d580aca0..8d128e8e 100644
--- a/src/traffic/core/distance.py
+++ b/src/traffic/core/distance.py
@@ -80,7 +80,7 @@ def guess_airport(
 
     if warning_distance is not None and airport.distance > warning_distance:
         _log.warning(
-            f"Closest airport is more than {warning_distance*1e-3}km away "
+            f"Closest airport is more than {warning_distance * 1e-3}km away "
             f" (distance={airport.distance})"
         )
     return airport
diff --git a/src/traffic/core/flight.py b/src/traffic/core/flight.py
index 0a55ef25..38b40029 100644
--- a/src/traffic/core/flight.py
+++ b/src/traffic/core/flight.py
@@ -2776,8 +2776,7 @@ def fail_silent() -> Flight:
         else:
             df = data if isinstance(data, pd.DataFrame) else data.data
             df = df.query(
-                "icao24 == @self.icao24 and "
-                "@self.start < mintime < @self.stop"
+                "icao24 == @self.icao24 and @self.start < mintime < @self.stop"
             )
 
         if df is None or df.shape[0] == 0:
diff --git a/src/traffic/core/iterator.py b/src/traffic/core/iterator.py
index 829f5123..6b48e3b0 100644
--- a/src/traffic/core/iterator.py
+++ b/src/traffic/core/iterator.py
@@ -284,7 +284,7 @@ def flight_iterator(
     msg = (
         "The @flight_iterator decorator can only be set on methods "
         ' annotated with an Iterator["Flight"] return type.'
-        f' Got {fun.__annotations__["return"]}'
+        f" Got {fun.__annotations__['return']}"
     )
     if not (
         fun.__annotations__["return"] == Iterator["Flight"]
diff --git a/src/traffic/core/structure.py b/src/traffic/core/structure.py
index 75279107..2e0723a8 100644
--- a/src/traffic/core/structure.py
+++ b/src/traffic/core/structure.py
@@ -313,7 +313,7 @@ def __rich_repr__(self) -> rich.repr.Result:
                 yield "description", self.description
             yield (
                 "frequency",
-                f"{self.frequency}{'kHz' if self.type=='NDB' else 'MHz'}",
+                f"{self.frequency}{'kHz' if self.type == 'NDB' else 'MHz'}",
             )
 
     def __repr__(self) -> str:
@@ -326,7 +326,7 @@ def __repr__(self) -> str:
                 f"{self.name} ({self.type}): {self.latitude} {self.longitude}"
                 f" {self.altitude:.0f} "
                 f"{self.description if self.description is not None else ''}"
-                f" {self.frequency}{'kHz' if self.type=='NDB' else 'MHz'}"
+                f" {self.frequency}{'kHz' if self.type == 'NDB' else 'MHz'}"
             )
 
 
diff --git a/src/traffic/core/traffic.py b/src/traffic/core/traffic.py
index d98569fb..7f3bb609 100644
--- a/src/traffic/core/traffic.py
+++ b/src/traffic/core/traffic.py
@@ -1175,8 +1175,7 @@ def agg_latlon(
         See how to make `flight density heatmaps </scenarios/heatmaps.html>`_
         """
         warnings.warn(
-            "agg_latlon will disappear in future versions. "
-            "Use agg_xy instead",
+            "agg_latlon will disappear in future versions. Use agg_xy instead",
             DeprecationWarning,
         )
 
diff --git a/src/traffic/data/eurocontrol/aixm/navpoints.py b/src/traffic/data/eurocontrol/aixm/navpoints.py
index 6ae0d7cc..4e8084a3 100644
--- a/src/traffic/data/eurocontrol/aixm/navpoints.py
+++ b/src/traffic/data/eurocontrol/aixm/navpoints.py
@@ -158,8 +158,7 @@ def parse_data(self) -> None:
             }
 
             extension = point.find(
-                "aixm:timeSlice/aixm:DesignatedPointTimeSlice/"
-                "aixm:extension",
+                "aixm:timeSlice/aixm:DesignatedPointTimeSlice/aixm:extension",
                 ns,
             )
             if extension is not None:
@@ -231,8 +230,7 @@ def parse_data(self) -> None:
             }
 
             extension = point.find(
-                "aixm:timeSlice/aixm:DesignatedPointTimeSlice/"
-                "aixm:extension",
+                "aixm:timeSlice/aixm:DesignatedPointTimeSlice/aixm:extension",
                 ns,
             )
             if extension is not None: