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Added Examples to Inheritance Demonstrations
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9 files changed

+314
-16
lines changed

‎Classes-Tutorial.ipynb‎

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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3.10.2 64-bit",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"name": "python"
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"name": "python",
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"version": "3.10.2"
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},
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"hash": "7e1998ff7f8aa20ada591c520b972326324e5ea05489af9e422744c7c09f6dad"
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}
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}
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},
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"nbformat": 4,
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"nbformat_minor": 2

‎Dogs.ipynb‎

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{
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"cells": [
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{
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"cell_type": "code",
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"execution_count": 13,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"Woof!\n",
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"Piper 5 9.5\n",
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"Aroooo\n",
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"Chloe 5 10\n",
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"Aroooo\n"
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]
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}
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],
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"source": [
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"class Dog:\n",
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" def __init__(self, name, age, friendliness):\n",
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" self.name = name\n",
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" self.age = age\n",
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" self.friendliness = friendliness\n",
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" \n",
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" def likes_walks(self):\n",
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" return True\n",
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" \n",
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" def bark(self):\n",
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" return 'Woof!'\n",
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"\n",
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"# Inheritance - Add Parent Class in Class Definition\n",
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"# super() - Parent Class\n",
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"class Samyoed(Dog):\n",
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" def __init__(self, name, age, friendliness):\n",
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" super().__init__(name, age, friendliness) # Calls initialization function in the parent class\n",
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"\n",
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"\n",
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" def bark(self):\n",
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" return 'Arf Arf!'\n",
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"\n",
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"class Poodle(Dog):\n",
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" def __init__(self, name, age, friendliness):\n",
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" super().__init__(self, name, age, friendliness) # Calls initialization function in the parent class\n",
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"\n",
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"class GoldenRetriever(Dog):\n",
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" def __init__(self, name, age, friendliness):\n",
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" super().__init__(name, age, friendliness) # Calls initialization function in the parent class\n",
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"\n",
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"# poodle = Poodle('Poodini', 5, 10)\n",
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"sammy = Samyoed('Sammy', 2, 10)\n",
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"# print(sammy.name, sammy.age, sammy.friendliness)\n",
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"print(sammy.bark())\n",
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"class BlackLab(Dog):\n",
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" def __init__(self, name, age, friendliness):\n",
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" super().__init__(name, age, friendliness)\n",
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"\n",
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"class BlackRetriever(BlackLab, GoldenRetriever):\n",
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" def __init__(self, name, age, friendliness):\n",
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" super().__init__(name, age,friendliness)\n",
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" def bark(self):\n",
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" return 'Aroooo'\n",
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"\n",
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"# Create New Objects\n",
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"Piper = BlackRetriever('Piper', 5, 9.5)\n",
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"Chloe = BlackRetriever('Chloe', 5, 10)\n",
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"print(Piper.name, Piper.age, Piper.friendliness) \n",
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"print(Piper.bark())\n",
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"print(Chloe.name, Chloe.age, Chloe.friendliness)\n",
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"print(Chloe.bark())\n",
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"\n",
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"\n"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": []
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3.9.12 ('macos')",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.9.12"
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},
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"orig_nbformat": 4,
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"vscode": {
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"interpreter": {
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"hash": "22608493959378f606de73a65fea1c2a2865a76055a64344b8428e775cc448e8"
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}
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}
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},
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"nbformat": 4,
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"nbformat_minor": 2
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}

‎Inheritance-Ex1.py‎

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class Person:
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def __init__(self, fname, lname):
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self.firstName = fname
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self.lastName = lname
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def printname(self):
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print(f"My name is: {self.firstName} {self.lastName} ")
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person = Person("Obi Wan", "Kenobi")
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person.printname()

‎Inheritance.ipynb‎

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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"Inheritance is the ability of a Derived (Child) class to take all functionality from a Base (Parent) class.\n",
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"Inheritance allows us to create new classes (child class) that inherit all the attributes and methods from another class\n",
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"\n",
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"Inheritance Syntax:\n",
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"class BaseClass:\n",
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" Body of derived class"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [
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{
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"ename": "",
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"evalue": "",
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"output_type": "error",
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"traceback": [
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"\u001b[1;31mRunning cells with 'Python 3.10.2 64-bit' requires ipykernel package.\n",
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"Run the following command to install 'ipykernel' into the Python environment. \n",
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"Command: '/usr/local/bin/python3.10 -m pip install ipykernel -U --user --force-reinstall'"
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]
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}
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],
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"source": [
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"class Person:\n",
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" def __init__(self, fname, lname):\n",
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" self.firstName = fname\n",
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" self.lastName = lname\n",
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" def printname(self):\n",
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" print(f\"My name is: {self.firstName} {self.lastName} \")\n",
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"\n",
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"person = Person(\"Obi Wan\", \"Kenobi\")\n",
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"person.printname()"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3.9.0 ('tensorflow_m1')",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"name": "python"
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"name": "python",
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"version": "3.9.0"
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},
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"vscode": {
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"hash": "6cda60cff8d67cf10b4c2a33fafc9942558b0b5167f5378af9b1316837848ff1"
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}
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}
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},
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"nbformat": 4,
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"nbformat_minor": 2

‎Method-Overriding.ipynb‎

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{
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"cells": [
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"# https://www.programiz.com/python-programming/inheritance\n"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"Generally when overriding a base method, we tend to extend the definition rather than simply replace it. The same is being done by calling the method in base class from the one in derived class (calling Polygon.__init__() from __init__() in Triangle).\n",
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"\n",
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"A better option would be to use the built-in function super(). So, super().__init__(3) is equivalent to Polygon.__init__(self,3) and is preferred. To learn more about the super() function in Python, visit Python super() function.\n",
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"\n",
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"Two built-in functions isinstance() and issubclass() are used to check inheritances.\n",
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"\n",
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"The function isinstance() returns True if the object is an instance of the class or other classes derived from it. Each and every class in Python inherits from the base class object."
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]
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3.10.2 64-bit",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"name": "python",
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"version": "3.10.2"
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},
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"orig_nbformat": 4,
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"vscode": {
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"interpreter": {
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"hash": "7e1998ff7f8aa20ada591c520b972326324e5ea05489af9e422744c7c09f6dad"
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}
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}
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},
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"nbformat": 4,
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"nbformat_minor": 2
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}

‎Polygon.ipynb‎

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},
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{
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"cell_type": "code",
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"execution_count": null,
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"execution_count": 4,
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"metadata": {},
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"outputs": [],
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"Side 1 is 3.0\n",
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"Side 2 is 5.0\n",
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"Side 3 is 4.0\n",
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"The area of the triangle is 6.00\n"
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]
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}
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],
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"source": [
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"# Define a Triangle class that uses the Polygon class you created in the previous exercise.\n",
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"class Triangle(Polygon):\n",
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"t.inputSides()\n",
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"t.displaySides()\n",
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"t.findArea()\n",
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"\n",
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"\n",
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"\n",
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"\n",
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" \n"
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]
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}

‎Super-Function.ipynb‎

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{
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"cells": [
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"class Person:\n",
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" def __init__(self, fname, lname):\n",
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" self.firstName = fname\n",
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" self.lastName = lname\n",
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" def printname(self):\n",
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" print(f\"My name is: {self.firstName} {self.lastName} \")\n",
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"\n",
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"person = Person(\"Obi Wan\", \"Kenobi\")\n",
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"person.printname()\n",
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"\n",
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"# Example of Super() Function\n",
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"class Student(Person):\n",
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" def __init__(self, fname, lname):\n",
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" super().__init__(fname, lname)"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"Super() Function\n",
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"- Python has a super() function that will make the child class inherit all the methods and properties from its parent:"
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]
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3.10.2 64-bit",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"name": "python",
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"version": "3.10.2"
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},
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"hash": "7e1998ff7f8aa20ada591c520b972326324e5ea05489af9e422744c7c09f6dad"
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}
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}
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},
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"nbformat": 4,
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"nbformat_minor": 2
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}

‎Traveling-Salesperson.ipynb‎

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"# The following code sets the default search parameters and a heuristic method for finding the first solution: \n",
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"search_parameters = pywrapcp.DefaultRoutingSearchParameters()\n",
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"search_parameters.first_solution_strategy = (\n",
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" routing_enums_pb2.FirstSolutionStrategy.PATH_CHEAPEST_ARC)\n"
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" routing_enums_pb2.FirstSolutionStrategy.PATH_CHEAPEST_ARC)\n",
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"\n"
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]
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3.10.2 64-bit",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"name": "python"
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"name": "python",
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"version": "3.10.2"
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},
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"orig_nbformat": 4
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"orig_nbformat": 4,
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"vscode": {
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"interpreter": {
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"hash": "7e1998ff7f8aa20ada591c520b972326324e5ea05489af9e422744c7c09f6dad"
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}
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}
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},
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"nbformat": 4,
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"nbformat_minor": 2

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