Solution 1.0

app/main.py

@@ -1,3 +1,82 @@
+from __future__ import annotations
+
+
 class Distance:
-    # Write your code here
-    pass
+    @staticmethod
+    def type_error() -> TypeError:
+        raise TypeError(
+            "This operation can be executed solely with"
+            " instance of class Distance or number ")
+
+    def __init__(self, km: int | float) -> None:
+        self.km = km
+
+    def __str__(self) -> str:
+        return (f"Distance: {self.km} "
+                f"{'kilometers' if self.km != 1 else 'kilometr'}.")
+
+    def __repr__(self) -> str:
+        return f"Distance(km={self.km})"
+
+    def __add__(self, other: Distance | int | float) -> Distance:
+        if isinstance(other, Distance):
+            return Distance(self.km + other.km)
+        elif isinstance(other, (int, float)):
+            return Distance(self.km + other)
+        else:
+            self.type_error()
+
+    def __iadd__(self, other: Distance | int | float) -> Distance:
+        if isinstance(other, Distance):
+            self.km += other.km
+        elif isinstance(other, (int, float)):
+            self.km += other
+        else:
+            self.type_error()
+        return self
+
+    def __mul__(self, number: int | float) -> Distance:
+        return Distance(self.km * number)
+
+    def __truediv__(self, number: int | float) -> Distance:
+        return Distance(round(self.km / number, 2))
+
+    def __lt__(self, other: Distance | int | float) -> bool:
+        if isinstance(other, Distance):
+            return self.km < other.km
+        elif isinstance(other, (int, float)):
+            return self.km < other
+        else:
+            self.type_error()
+
+    def __gt__(self, other: Distance | int | float) -> bool:
+        if isinstance(other, Distance):
+            return self.km > other.km
+        elif isinstance(other, (int, float)):
+            return self.km > other
+        else:
+            self.type_error()
+
+    def __eq__(self, other: Distance | int | float) -> bool:
+        if isinstance(other, Distance):
+            return self.km == other.km
+        elif isinstance(other, (int, float)):
+            return self.km == other
+        else:
+            self.type_error()
+
+    def __le__(self, other: Distance | int | float) -> bool:
+        if isinstance(other, Distance):
+            return self.km <= other.km
+        elif isinstance(other, (int, float)):
+            return self.km <= other
+        else:
+            self.type_error()
+
+    def __ge__(self, other: Distance | int | float) -> bool:
+        if isinstance(other, Distance):
+            return self.km >= other.km
+        elif isinstance(other, (int, float)):
+            return self.km >= other
+        else:
+            self.type_error()