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authorSimeon Simeonov2023-01-18 21:12:31 +0100
committerSimeon Simeonov2023-01-18 21:12:31 +0100
commit6dcd1727eb9d5dbfcb8f6e9599ada10d33063bac (patch)
tree57d6aa95763fd57835316cca7ce1ae33f3f19ec2 /reveal.js/python-oo.html
parenta33898d9db2f0e0e9b3da6f1b329b4045b65af11 (diff)
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1<!doctype html>
2<html lang="en">
3 <head>
4 <meta charset="utf-8">
5 <title>Object-oriented programming in Python</title>
6 <meta name="author" content="Simeon Simeonov">
7 <meta name="apple-mobile-web-app-capable" content="yes">
8 <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent">
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14 <link rel="stylesheet" href="dist/theme/statnett.css" id="theme">
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19 </head>
20 <body>
21 <div class="reveal">
22
23 <!-- Any section element inside of this container is displayed as a slide -->
24 <div class="slides">
25
26 <section>
27 <h2>Object-oriented programming in Python</h2>
28 <h4>Data Engineering @ Statnett</h4>
29 </br>
30 <p><small>Simeon Simeonov</small></p>
31 </section>
32
33 <section>
34 <h2>Goals</h2>
35 </br>
36 <ul>
37 <li><p>Present the Python programming language in a different way than <a href="https://docs.python.org">https://docs.python.org</a></p></li>
38 <li><p>Avoid information overload</p></li>
39 <li><p>Use examples and interaction rather than documents and slides</p></li>
40 </ul>
41 </section>
42
43 <section>
44 <h2>Preliminary plan</h2>
45 </br>
46 <ul>
47 <li><p>Basics: About the language, the Python eco-system, types, modules, functions, scopes, decorators, string formatting</p></li>
48 <li><p><b>Object-oriented programming in Python: How Python "really works"</b></p></li>
49 <li><p>Control flow: if / for / while / try, iterators, "tactical programming" tips</p></li>
50 <li><p>A brief tour through Python's standard library</p></li>
51 <li><p>Code design and best practices: How to design your code</p></li>
52 </ul>
53 </section>
54
55 <section>
56 <h2>What is object-oriented programming?</h2>
57 </br>
58 <p>Object-oriented programming does <b>not</b> mean using an object-oriented programming language.</p>
59 <p>It is rather a programming paradigm based on the concept of <em>object</em>, as well as on some general principles and best practices aiming at:</p>
60 <ul>
61 <li><p>improving readability</p></li>
62 <li><p>improving re-usability</p></li>
63 <li><p>improving modularity</p></li>
64 <li><p>providing foundation for a more intuitive design</p></li>
65 </ul>
66 </section>
67
68 <section>
69 <h2>General principles</h2>
70 </br>
71 <p>The following four concepts / principles are presented in most object-oriented programming books:</p>
72 <ul>
73 <li><p>separate and hide "private" details from the outside world and / or child (inheriting) functionality (encapsulation)</p></li>
74 <li><p>separate the interface from its implementation (abstraction)</p></li>
75 <li><p>inherit and extend / adapt existing functionality, through "is-a" relationship hierarchy (inheritance)</p></li>
76 <li><p>execute different code / functionality based on the object's place in the hierarchy (polymorphism)</p></li>
77 </ul>
78 </section>
79
80 <section>
81 <h2>Building blocks and definitions</h2>
82 </br>
83 <p><b>Note:</b> "Lacking universally accepted terminology to talk about classes, I will make occasional use of Smalltalk and C++ terms." - The Python tutorial (https://docs.python.org)</p>
84 <p>When talking about object-oriented programming, the following building blocks are involved:</p>
85 <ul>
86 <li><p>class - a blueprint / template for creating objects</p></li>
87 <li><p>object - an instance of a class that may contain its own attributes as well as references to its class' attributes</p></li>
88 <li><p>attribute - variable, property, function defined in the class and present in its instances</p></li>
89 <li><p>class variable - attribute of which a single copy exists, regardless of how many instances of the class exist</p></li>
90 <li><p>object / instance variable - attribute for which each instantiated object of the class has a separate copy, or instance</p></li>
91 <li><p>method - member function - function that is an attribute</p></li>
92 </ul>
93 </section>
94
95 <section>
96 <h2>The object-oriented world of Python</h2>
97 </br>
98 <p>Some additional concepts and definitions are introduced in Python, as well as in some other programming languages:</p>
99 <ul>
100 <li><p>metaclass - a class whose instances are classes</p></li>
101 <li><p>property - attribute that provides a flexible mechanism to read, write, or compute the value of a "private" attribute</p></li>
102 <li><p>type - old C object-oriented term, now (in Python 3) considered to be the same as class</p></li>
103 </ul>
104 <p> As is true for modules, classes partake of the dynamic nature of Python: they are created at runtime, and can be modified further after creation.</p>
105 </section>
106
107 <section>
108 <h2>The object-oriented world of Python (cont...)</h2>
109 </br>
110 <p>The < </p>
111 <ul>
112 <li><p>metaclass - a class whose instances are classes</p></li>
113 <li><p>property - attribute that provides a flexible mechanism to read, write, or compute the value of a "private" attribute</p></li>
114 <li><p>type - old C object-oriented term, now (in Python 3) considered to be the same as class</p></li>
115 </ul>
116 </section>
117
118 </div>
119 </div>
120
121 <script src="dist/reveal.js"></script>
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128
129 // Also available as an ES module, see:
130 // https://revealjs.netlify.app/initialization/
131 Reveal.initialize({
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135 hash: true,
136
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