make changes to the existing content

Author: khuyentran1401

Chapter1/class.ipynb

@@ -166,16 +166,14 @@
    "id": "58649bd2",
    "metadata": {},
    "source": [
-    "Sometimes you might want different classes to use the same attributes and methods. But the implementation of those methods can be slightly different in each class.\n",
+    "To ensure that all subclasses implement a set of methods and properties, use abstract methods within an abstract class. This promotes code reusability and a consistent interface across different implementations.\n",
     "\n",
-    "A good way to implement this is to use abstract classes. An abstract class contains one or more abstract methods.\n",
-    "\n",
-    "An abstract method is a method that is declared but contains no implementation. The abstract method requires subclasses to provide implementations."
+    "In the following code, Drink serves as an abstract class with an abstract method consume."
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
+   "execution_count": 2,
    "id": "3d560ac4",
    "metadata": {
     "ExecuteTime": {
@@ -188,34 +186,37 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "Pepper says: Woof\n",
-      "Bella says: Meows\n"
+      "Drinking English Breakfast tea...\n",
+      "Drinking Tropical Blast smoothie...\n"
      ]
     }
    ],
    "source": [
-    "from abc import ABC, abstractmethod \n",
+    "from abc import ABC, abstractmethod\n",
     "\n",
-    "class Animal(ABC):\n",
     "\n",
-    "    def __init__(self, name: str):\n",
-    "        self.name = name \n",
-    "        super().__init__()\n",
+    "class Drink(ABC):\n",
+    "    def __init__(self, name, volume):\n",
+    "        self.name = name\n",
+    "        self.volume = volume\n",
+    "\n",
+    "    @abstractmethod\n",
+    "    def consume(self):\n",
+    "        pass\n",
+    "\n",
+    "\n",
+    "class Tea(Drink):\n",
+    "    def consume(self):\n",
+    "        print(f\"Drinking {self.name} tea...\")\n",
     "\n",
-    "    @abstractmethod \n",
-    "    def make_sound(self):\n",
-    "        pass \n",
     "\n",
-    "class Dog(Animal):\n",
-    "    def make_sound(self):\n",
-    "        print(f'{self.name} says: Woof')\n",
+    "class Smoothie(Drink):\n",
+    "    def consume(self):\n",
+    "        print(f\"Drinking {self.name} smoothie...\")\n",
     "\n",
-    "class Cat(Animal):\n",
-    "    def make_sound(self):\n",
-    "        print(f'{self.name} says: Meows')\n",
     "\n",
-    "Dog('Pepper').make_sound()\n",
-    "Cat('Bella').make_sound()"
+    "Tea(\"English Breakfast\", 250).consume()\n",
+    "Smoothie(\"Tropical Blast\", 500).consume()"
    ]
   },
   {

Chapter5/visualization.ipynb

@@ -234,6 +234,7 @@
 <li class="toctree-l2"><a class="reference internal" href="../Chapter2/dataclasses.html">3.7. Data Classes</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../Chapter2/typing.html">3.8. Typing</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../Chapter2/pathlib.html">3.9. pathlib</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../Chapter2/pydantic.html">3.10. Pydantic</a></li>
 </ul>
 </li>
 <li class="toctree-l1 has-children"><a class="reference internal" href="../Chapter3/Chapter3.html">4. Pandas</a><input class="toctree-checkbox" id="toctree-checkbox-4" name="toctree-checkbox-4" type="checkbox"/><label class="toctree-toggle" for="toctree-checkbox-4"><i class="fa-solid fa-chevron-down"></i></label><ul>
@@ -625,39 +626,41 @@ <h2><span class="section-number">2.6.1. </span>Inheritance in Python<a class="he
 </section>
 <section id="abstract-classes-declare-methods-without-implementation">
 <h2><span class="section-number">2.6.2. </span>Abstract Classes: Declare Methods without Implementation<a class="headerlink" href="#abstract-classes-declare-methods-without-implementation" title="Permalink to this heading">#</a></h2>
-<p>Sometimes you might want different classes to use the same attributes and methods. But the implementation of those methods can be slightly different in each class.</p>
-<p>A good way to implement this is to use abstract classes. An abstract class contains one or more abstract methods.</p>
-<p>An abstract method is a method that is declared but contains no implementation. The abstract method requires subclasses to provide implementations.</p>
+<p>To ensure that all subclasses implement a set of methods and properties, use abstract methods within an abstract class. This promotes code reusability and a consistent interface across different implementations.</p>
+<p>In the following code, Drink serves as an abstract class with an abstract method consume.</p>
 <div class="cell docutils container">
 <div class="cell_input docutils container">
-<div class="highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">abc</span> <span class="kn">import</span> <span class="n">ABC</span><span class="p">,</span> <span class="n">abstractmethod</span> 
+<div class="highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">abc</span> <span class="kn">import</span> <span class="n">ABC</span><span class="p">,</span> <span class="n">abstractmethod</span>
 
-<span class="k">class</span> <span class="nc">Animal</span><span class="p">(</span><span class="n">ABC</span><span class="p">):</span>
 
-    <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">:</span> <span class="nb">str</span><span class="p">):</span>
-        <span class="bp">self</span><span class="o">.</span><span class="n">name</span> <span class="o">=</span> <span class="n">name</span> 
-        <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">()</span>
+<span class="k">class</span> <span class="nc">Drink</span><span class="p">(</span><span class="n">ABC</span><span class="p">):</span>
+    <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">volume</span><span class="p">):</span>
+        <span class="bp">self</span><span class="o">.</span><span class="n">name</span> <span class="o">=</span> <span class="n">name</span>
+        <span class="bp">self</span><span class="o">.</span><span class="n">volume</span> <span class="o">=</span> <span class="n">volume</span>
+
+    <span class="nd">@abstractmethod</span>
+    <span class="k">def</span> <span class="nf">consume</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
+        <span class="k">pass</span>
+
+
+<span class="k">class</span> <span class="nc">Tea</span><span class="p">(</span><span class="n">Drink</span><span class="p">):</span>
+    <span class="k">def</span> <span class="nf">consume</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
+        <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Drinking </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="si">}</span><span class="s2"> tea...&quot;</span><span class="p">)</span>
 
-    <span class="nd">@abstractmethod</span> 
-    <span class="k">def</span> <span class="nf">make_sound</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="k">pass</span> 
 
-<span class="k">class</span> <span class="nc">Dog</span><span class="p">(</span><span class="n">Animal</span><span class="p">):</span>
-    <span class="k">def</span> <span class="nf">make_sound</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s1">&#39;</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="si">}</span><span class="s1"> says: Woof&#39;</span><span class="p">)</span>
+<span class="k">class</span> <span class="nc">Smoothie</span><span class="p">(</span><span class="n">Drink</span><span class="p">):</span>
+    <span class="k">def</span> <span class="nf">consume</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
+        <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Drinking </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="si">}</span><span class="s2"> smoothie...&quot;</span><span class="p">)</span>
 
-<span class="k">class</span> <span class="nc">Cat</span><span class="p">(</span><span class="n">Animal</span><span class="p">):</span>
-    <span class="k">def</span> <span class="nf">make_sound</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s1">&#39;</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="si">}</span><span class="s1"> says: Meows&#39;</span><span class="p">)</span>
 
-<span class="n">Dog</span><span class="p">(</span><span class="s1">&#39;Pepper&#39;</span><span class="p">)</span><span class="o">.</span><span class="n">make_sound</span><span class="p">()</span>
-<span class="n">Cat</span><span class="p">(</span><span class="s1">&#39;Bella&#39;</span><span class="p">)</span><span class="o">.</span><span class="n">make_sound</span><span class="p">()</span>
+<span class="n">Tea</span><span class="p">(</span><span class="s2">&quot;English Breakfast&quot;</span><span class="p">,</span> <span class="mi">250</span><span class="p">)</span><span class="o">.</span><span class="n">consume</span><span class="p">()</span>
+<span class="n">Smoothie</span><span class="p">(</span><span class="s2">&quot;Tropical Blast&quot;</span><span class="p">,</span> <span class="mi">500</span><span class="p">)</span><span class="o">.</span><span class="n">consume</span><span class="p">()</span>
 </pre></div>
 </div>
 </div>
 <div class="cell_output docutils container">
-<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>Pepper says: Woof
-Bella says: Meows
+<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>Drinking English Breakfast tea...
+Drinking Tropical Blast smoothie...
 </pre></div>
 </div>
 </div>