solution

app/main.py

@@ -1,3 +1,57 @@
+from __future__ import annotations
+
+
 class Distance:
-    # Write your code here
-    pass
+    def __init__(self, km: float) -> None:
+        self.km = km
+
+    def __str__(self) -> str:
+        return f"Distance: {self.km} kilometers."
+
+    def __repr__(self) -> str:
+        return f"Distance(km={self.km})"
+
+    def __add__(self, distance: any) -> Distance:
+        if isinstance(distance, Distance):
+            return Distance(self.km + distance.km)
+        elif isinstance(distance, float):
+            return Distance(self.km + distance)
+        elif isinstance(distance, int):
+            return Distance(self.km + distance)
+
+    def __iadd__(self, distance: any) -> Distance:
+        if isinstance(distance, Distance):
+            self.km += distance.km
+        elif isinstance(distance, (float, int)):
+            self.km += distance
+        return self
+
+    def __mul__(self, factor: float) -> float:
+        return Distance(self.km * factor)
+
+    def __truediv__(self, divisor: float) -> float:
+        return Distance(round(self.km / divisor, 2))
+
+    def __lt__(self, distance: any) -> bool:
+        if isinstance(distance, Distance):
+            return self.km < distance.km
+        elif isinstance(distance, (float, int)):
+            return self.km < distance
+
+    def __gt__(self, distance: any) -> bool:
+        if isinstance(distance, Distance):
+            return self.km > distance.km
+        elif isinstance(distance, (float, int)):
+            return self.km > distance
+
+    def __eq__(self, distance: any) -> bool:
+        if isinstance(distance, Distance):
+            return self.km == distance.km
+        elif isinstance(distance, (float, int)):
+            return self.km == distance
+
+    def __le__(self, distance: any) -> bool:
+        return self < distance or self == distance
+
+    def __ge__(self, distance: any) -> bool:
+        return self > distance or self == distance