05-Object Oriented Programming/02-Inheritance and Polymorphism.ipynb

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  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Inheritance"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 39,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "class Animal():\n",
    "    def __init__(self):\n",
    "        print('Animal Created')\n",
    "        \n",
    "    def who_am_i(self):\n",
    "        print(\"Who am I?\")\n",
    "        \n",
    "    def eat(self):\n",
    "        print(\"I am Eating\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 29,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "class Dog(Animal):\n",
    "    def __init__(self):\n",
    "        Animal.__init__(self)\n",
    "        print(\"Dog Created\")\n",
    "        \n",
    "    def who_am_i(self):\n",
    "        print('I am a Dog')\n",
    "        \n",
    "    def bark(self):\n",
    "        print('Woof!')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 31,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Animal Created\n",
      "Dog Created\n"
     ]
    }
   ],
   "source": [
    "dg = Dog()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 22,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "I am Eating\n"
     ]
    }
   ],
   "source": [
    "dg.eat()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 27,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "I am a Dog\n"
     ]
    }
   ],
   "source": [
    "dg.who_am_i()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 32,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Woof!\n"
     ]
    }
   ],
   "source": [
    "dg.bark()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 24,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Animal Created\n"
     ]
    }
   ],
   "source": [
    "ani = Animal()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 25,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Who am I?\n"
     ]
    }
   ],
   "source": [
    "ani.who_am_i()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Polymorphism"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 35,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "class Dracula():\n",
    "    def __init__(self,name):\n",
    "        self.name = name\n",
    "    def talk(self):\n",
    "        return self.name + ' likes screams'"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 37,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "class Vampire():\n",
    "    def __init__(self,name):\n",
    "        self.name = name\n",
    "    def talk(self):\n",
    "        return self.name+' likes blood'"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 41,
   "metadata": {},
   "outputs": [],
   "source": [
    "drek = Dracula('Drake')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 42,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'Drake hello!'"
      ]
     },
     "execution_count": 42,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "drek.talk()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 43,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "vam = Vampire('Ghost')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 44,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'Ghost likes blood'"
      ]
     },
     "execution_count": 44,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "vam.talk()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 47,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "<class '__main__.Dracula'>\n",
      "Drake hello!\n",
      "<class '__main__.Vampire'>\n",
      "Ghost likes blood\n"
     ]
    }
   ],
   "source": [
    "for pet in [drek,vam]:\n",
    "    print(type(pet))\n",
    "    print(pet.talk())"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 48,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "def taboo(myth):\n",
    "    print(myth.talk())"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 49,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Ghost likes blood\n"
     ]
    }
   ],
   "source": [
    "taboo(vam)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 50,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Drake hello!\n"
     ]
    }
   ],
   "source": [
    "taboo(drek)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": []
  }
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