Refactor code

Author: Sarmad426

7-OOP/2-Abstraction/abstraction.ipynb

@@ -9,7 +9,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 6,
+   "execution_count": 3,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -26,7 +26,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 7,
+   "execution_count": 4,
    "metadata": {},
    "outputs": [
     {
@@ -71,7 +71,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 11,
+   "execution_count": 9,
    "metadata": {},
    "outputs": [
     {
@@ -87,7 +87,8 @@
     "    \"\"\"Abstract base class representing a vehicle.\"\"\"\n",
     "\n",
     "    @property\n",
-    "    def max_speed(self) -> float | None:\n",
+    "    @abstractmethod\n",
+    "    def max_speed(self) -> float:\n",
     "        \"\"\"Maximum speed of the vehicle.\"\"\"\n",
     "        pass\n",
     "\n",
@@ -96,10 +97,12 @@
     "    \"\"\"Class representing a car.\"\"\"\n",
     "\n",
     "    def __init__(self, max_speed: float) -> None:\n",
+    "        \"\"\"Initialize a car with a given maximum speed.\"\"\"\n",
     "        self._max_speed = max_speed\n",
     "\n",
     "    @property\n",
     "    def max_speed(self) -> float:\n",
+    "        \"\"\"Return the maximum speed of the car.\"\"\"\n",
     "        return self._max_speed\n",
     "\n",
     "\n",
@@ -116,7 +119,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 9,
+   "execution_count": 6,
    "metadata": {},
    "outputs": [
     {
@@ -163,7 +166,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 10,
+   "execution_count": 7,
    "metadata": {},
    "outputs": [
     {