Added note about python classes

Author: amgadmadkour

docs/python/language/classes.ipynb

@@ -0,0 +1,90 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "c4ff441a",
+   "metadata": {},
+   "source": [
+    "# Classes"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "54ceb1e6",
+   "metadata": {},
+   "source": [
+    "A Python class is a blueprint for creating objects that bundle data (attributes) and behavior (methods). It defines a custom type by specifying the structure and functionality that its instances will have, supporting encapsulation and reuse. Classes enable object-oriented features like inheritance and polymorphism, allowing extension and customization of behavior."
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "2c3fcdc8",
+   "metadata": {},
+   "source": [
+    "## Defining a class"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 9,
+   "id": "bdd215a1",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      " 2023 Volvo XC90\n",
+      " 2023 Volvo XC60\n"
+     ]
+    }
+   ],
+   "source": [
+    "class Car:\n",
+    "    def __init__(self, make, model, year):\n",
+    "        self.make = make\n",
+    "        self.model = model\n",
+    "        self.year = year\n",
+    "    \n",
+    "    def display(self):\n",
+    "        print(f\" {self.year} {self.make} {self.model}\")\n",
+    "\n",
+    "if __name__ == '__main__':\n",
+    "    car = Car(\"Volvo\", \"XC90\", \"2023\")\n",
+    "    car.display()\n",
+    "    car.model = \"XC60\"\n",
+    "    car.display()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "a9c324ce",
+   "metadata": {},
+   "source": [
+    "* **__init__()** : is the instance initializer that runs automatically after a new object is created typically used to set up initial state (attributes) for that instance.\n",
+    "* **self** :  is the reference to the current object, passed as the first parameter to instance methods so you can access and modify the object attributes and call its other methods."
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "notes (3.12.0)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.12.0"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}