{"id":130176,"date":"2022-04-13T14:59:52","date_gmt":"2022-04-13T18:59:52","guid":{"rendered":"https:\/\/brainstation.io\/?post_type=codex-reference&#038;p=130176"},"modified":"2025-02-04T14:58:39","modified_gmt":"2025-02-04T19:58:39","slug":"class","status":"publish","type":"codex-reference","link":"https:\/\/brainstation.io\/learn\/python\/class","title":{"rendered":"Class"},"content":{"rendered":"\n<header class=\"wp-block-bstn-blocks-hero-simple bstn-blocks-hero-simple\"><div class=\"bstn-blocks-hero-simple__full-width-wrapper bstn-blocks-hero-simple__full-width-wrapper--main bstn-blocks-hero-simple__full-width-wrapper--bg-flair\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 1140 621\" fill=\"none\" class=\"bstn-blocks-hero-simple__bg-flair--rich\"><g opacity=\"0.55\"><path stroke=\"#3C4556\" strokelinecap=\"square\" d=\"M60.026 736.434V203.02\"><\/path><path stroke=\"#3C4556\" strokelinecap=\"square\" d=\"M60.364 436.132L-120 436.131l180.364.001zm0-99.873H-120 60.364zm0-99.872H-120 60.364zM128 536.004h-248 248z\" cliprule=\"evenodd\"><\/path><path fill=\"#3C4556\" fillrule=\"evenodd\" d=\"M57.518 535.982a2.286 2.286 0 114.572 0 2.286 2.286 0 01-4.572 0zm0-99.836a2.286 2.286 0 114.572-.002 2.286 2.286 0 01-4.572.002zm0-99.837a2.286 2.286 0 114.572-.002 2.286 2.286 0 01-4.572.002zm0-99.837a2.286 2.286 0 114.572-.002 2.286 2.286 0 01-4.572.002z\" cliprule=\"evenodd\"><\/path><\/g><g opacity=\"0.55\"><path stroke=\"#3C4556\" strokelinecap=\"square\" d=\"M979.195-28.206V397.98m81.185-524.745V397.98\"><\/path><path stroke=\"#3C4556\" strokelinecap=\"square\" d=\"M1141.45 168.46H964h177.45zm0 98.334H964h177.45zm0 98.333H964h177.45zm66.55-295H964h244z\" cliprule=\"evenodd\"><\/path><path fill=\"#3C4556\" fillrule=\"evenodd\" d=\"M1138.66 70.148a2.244 2.244 0 104.49 0 2.246 2.246 0 10-4.49-.001zm-80.21 0c0 1.243 1.01 2.251 2.25 2.251s2.25-1.008 2.25-2.251c0-1.243-1.01-2.251-2.25-2.251s-2.25 1.008-2.25 2.25zm-81.707 0a2.25 2.25 0 104.5.004 2.25 2.25 0 00-4.5-.005zm81.707 98.299a2.252 2.252 0 002.25 2.251 2.252 2.252 0 000-4.503 2.253 2.253 0 00-2.25 2.252zm-81.707 0a2.25 2.25 0 104.498 0 2.25 2.25 0 00-2.249-2.252 2.25 2.25 0 00-2.249 2.252zm161.917-.001a2.244 2.244 0 104.49 0 2.246 2.246 0 10-4.49 0zm0 98.299a2.244 2.244 0 104.49 0 2.246 2.246 0 10-4.49 0zm-80.21 0c0 1.243 1.01 2.251 2.25 2.251s2.25-1.008 2.25-2.251c0-1.243-1.01-2.251-2.25-2.251s-2.25 1.008-2.25 2.251zm-81.707 0a2.25 2.25 0 104.5.002 2.25 2.25 0 00-4.5-.002zm81.707 98.299c0 1.243 1.01 2.251 2.25 2.251s2.25-1.008 2.25-2.251c0-1.243-1.01-2.251-2.25-2.251s-2.25 1.008-2.25 2.251zm-81.707 0a2.25 2.25 0 104.5.002 2.25 2.25 0 00-4.5-.002zm161.917 0a2.244 2.244 0 104.49 0 2.246 2.246 0 10-4.49 0z\" cliprule=\"evenodd\"><\/path><\/g><\/svg><div class=\"bstn-blocks-hero-simple__container\"><div class=\"bstn-blocks-hero-simple__copy-container\"><div class=\"bstn-blocks-hero-simple__subtitle-wrapper\"><p class=\"bstn-blocks-hero-simple__subtitle\">python tutorial<\/p><\/div><h1 class=\"bstn-blocks-hero-simple__title\">Python Class<\/h1><p class=\"bstn-blocks-hero-simple__description\"><meta charset=\"utf-8\">Learn more about Python, one of the world\u2019s most versatile and popular programming languages.<\/p><\/div><div class=\"bstn-blocks-hero-simple__image-container\"><\/div><\/div><\/div><\/header>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<p class=\"is-style-bstn-paragraph-documentation-body\">Python supports Object Oriented Programming (OOP) like many other popular programming languages. OOP revolves around the idea of classes and objects.<\/p>\n\n\n\n<p class=\"is-style-bstn-paragraph-documentation-body\">A class in Python is a blueprint from which objects can be constructed. Imagine class in OOP as a sketch by an architect for new building construction. Civil Engineers and construction workers then bring this sketch to life by building a real world object i.e. the building in this case.<\/p>\n\n\n\n<p class=\"is-style-bstn-paragraph-documentation-body\">Naming convention for a Python class is&nbsp;<code>PascalCase<\/code>. A class can be simply defined as follow in Python:<\/p>\n\n\n\n<div class=\"wp-block-bstn-blocks-code-snippet bstn-blocks-code-snippet\" data-code-snippet=\"true\"><div class=\"bstn-blocks-code-snippet__title-bar\"><span class=\"bstn-blocks-code-snippet__title\">Code Example<\/span><button class=\"bstn-blocks-code-snippet__copy-trigger\" aria-label=\"Copy code to clipboard\" data-copy-to-clipboard=\"true\"><svg viewbox=\"0 0 12 13\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"bstn-blocks-code-snippet__copy-trigger-icon\"><path d=\"M10.875.5h-7.5c-.633 0-1.125.516-1.125 1.125V2.75H1.125C.492 2.75 0 3.266 0 3.875v7.5A1.11 1.11 0 001.125 12.5h7.5c.61 0 1.125-.492 1.125-1.125V10.25h1.125c.61 0 1.125-.492 1.125-1.125v-7.5A1.14 1.14 0 0010.875.5zm-2.39 10.875h-7.22c-.093 0-.14-.047-.14-.14v-7.22c0-.07.047-.14.14-.14h.985v5.25a1.11 1.11 0 001.125 1.125h5.25v.984c0 .094-.07.141-.14.141zm2.25-2.25h-7.22c-.093 0-.14-.047-.14-.14v-7.22c0-.07.047-.14.14-.14h7.22c.07 0 .14.07.14.14v7.22c0 .093-.07.14-.14.14z\" fill=\"currentColor\"><\/path><\/svg><span data-copy-to-clipboard-text=\"true\">Copy<\/span><\/button><\/div><pre class=\"bstn-blocks-code-snippet__code-snippet-area match-braces line-numbers language-python\" data-language=\"python\" aria-readonly=\"true\"><code>class NewPythonClass:\n\t'''A docstring like this explains what the class does'''\n\tpass<\/code><\/pre><\/div>\n\n\n\n<p class=\"is-style-bstn-paragraph-documentation-body\">In the example above, a class in Python can be defined using the&nbsp;<code>class<\/code>&nbsp;keyword followed by the name of the class. We defined a docstring within the class to explain what the class does and why it is implemented. It helps in providing a detailed explanation about a class.<\/p>\n\n\n\n<p class=\"is-style-bstn-paragraph-documentation-body\">A class in Python has attributes or properties and methods that act on those attributes. There are also attributes and methods that are pre-built into every Python class and they start with two underscores and end with two underscores&nbsp;<code>__<\/code>. For example,&nbsp;<code>__init__<\/code>&nbsp;is a special method that is used to create new objects from the Python class.&nbsp;<code>__str__<\/code>&nbsp;is a special method that is used to provide a string representation of the class when objects are created from it.<\/p>\n\n\n\n<p class=\"is-style-bstn-paragraph-documentation-body\">Objects are created from a class by calling the constructor function which is&nbsp;<code>__init__<\/code>&nbsp;by using the name of the class followed by parentheses&nbsp;<code>()<\/code>. Any attributes that are needed to create objects from that class will be passed within those parentheses.<\/p>\n\n\n\n<div class=\"wp-block-bstn-blocks-code-snippet bstn-blocks-code-snippet\" data-code-snippet=\"true\"><div class=\"bstn-blocks-code-snippet__title-bar\"><span class=\"bstn-blocks-code-snippet__title\">Code Example<\/span><button class=\"bstn-blocks-code-snippet__copy-trigger\" aria-label=\"Copy code to clipboard\" data-copy-to-clipboard=\"true\"><svg viewbox=\"0 0 12 13\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"bstn-blocks-code-snippet__copy-trigger-icon\"><path d=\"M10.875.5h-7.5c-.633 0-1.125.516-1.125 1.125V2.75H1.125C.492 2.75 0 3.266 0 3.875v7.5A1.11 1.11 0 001.125 12.5h7.5c.61 0 1.125-.492 1.125-1.125V10.25h1.125c.61 0 1.125-.492 1.125-1.125v-7.5A1.14 1.14 0 0010.875.5zm-2.39 10.875h-7.22c-.093 0-.14-.047-.14-.14v-7.22c0-.07.047-.14.14-.14h.985v5.25a1.11 1.11 0 001.125 1.125h5.25v.984c0 .094-.07.141-.14.141zm2.25-2.25h-7.22c-.093 0-.14-.047-.14-.14v-7.22c0-.07.047-.14.14-.14h7.22c.07 0 .14.07.14.14v7.22c0 .093-.07.14-.14.14z\" fill=\"currentColor\"><\/path><\/svg><span data-copy-to-clipboard-text=\"true\">Copy<\/span><\/button><\/div><pre class=\"bstn-blocks-code-snippet__code-snippet-area match-braces line-numbers language-python\" data-language=\"python\" aria-readonly=\"true\"><code># python class syntax\n>>> class MyPythonClass:\n\u2026 \t'''this is a docstring to explain what this class does'''\n\u2026 \tpass\n\u2026\n\n>>> class Shape:\n\u2026 \t'''This is a base class Shape that allows to create shapes of all kinds'''\n\u2026 \tdef __init__(self):\n\u2026 \t\tself.type = 'Shape'\n\u2026 \tdef __str__(self):\n\u2026 \t\treturn \"This is a shape of type {}.\".format(self.type)\n\u2026\n\n# create an object from class Shape\n# __init__ will be called while creating new objects\n>>> shapeObject = Shape()\n>>> print(shapeObject)\nThis is a shape of type Shape.\n<\/code><\/pre><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-bstn-blocks-content-navigation-footer bstn-blocks-content-nav-footer bstn-blocks-content-nav-footer--article\"><div class=\"bstn-blocks-content-nav-footer__links-container\"><div class=\"bstn-blocks-content-nav-footer__link-container\"><p class=\"bstn-blocks-content-nav-footer__link-title bstn-blocks-content-nav-footer__link--desktop\">Previous<\/p><a class=\"bstn-blocks-content-nav-footer__link\" href=\"https:\/\/brainstation.io\/learn\/python\/lambda\"><span class=\"bstn-blocks-content-nav-footer__link-icon-wrapper bstn-blocks-content-nav-footer__link-icon-wrapper--left\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 18 18\" fill=\"none\" class=\"bstn-blocks-content-nav-footer__link-icon bstn-blocks-content-nav-footer__link-icon--left\"><path fill=\"currentColor\" d=\"M6.345 12.743a1 1 0 001.31 1.511l5.477-4.749a1 1 0 000-1.511l-5.477-4.75a1.001 1.001 0 00-1.31 1.512l4.606 3.993-4.606 3.994z\"><\/path><\/svg><\/span><span class=\"bstn-blocks-content-nav-footer__link-text bstn-blocks-content-nav-footer__link--desktop\">Python Lambda<\/span><\/a><\/div><div class=\"bstn-blocks-content-nav-footer__link-container\"><p class=\"bstn-blocks-content-nav-footer__link-title\">Next<\/p><a class=\"bstn-blocks-content-nav-footer__link\" href=\"https:\/\/brainstation.io\/learn\/python\/inheritance\"><span class=\"bstn-blocks-content-nav-footer__link-text\">Python Inheritance<\/span><span class=\"bstn-blocks-content-nav-footer__link-icon-wrapper bstn-blocks-content-nav-footer__link-icon-wrapper--right\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 18 18\" fill=\"none\" class=\"bstn-blocks-content-nav-footer__link-icon bstn-blocks-content-nav-footer__link-icon--right\"><path fill=\"currentColor\" d=\"M6.345 12.743a1 1 0 001.31 1.511l5.477-4.749a1 1 0 000-1.511l-5.477-4.75a1.001 1.001 0 00-1.31 1.512l4.606 3.993-4.606 3.994z\"><\/path><\/svg><\/span><\/a><\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-bstn-blocks-container bstn-blocks-container bstn-blocks-container--dark-blue bstn-blocks-container--64 bstn-blocks-container--negative-container bstn-blocks-container--overflow-hidden\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 1140 621\" fill=\"none\" class=\"bstn-blocks-container__bg-flair\"><g opacity=\"0.55\"><path stroke=\"#3C4556\" strokelinecap=\"square\" d=\"M60.026 736.434V203.02\"><\/path><path stroke=\"#3C4556\" strokelinecap=\"square\" d=\"M60.364 436.132L-120 436.131l180.364.001zm0-99.873H-120 60.364zm0-99.872H-120 60.364zM128 536.004h-248 248z\" cliprule=\"evenodd\"><\/path><path fill=\"#3C4556\" fillrule=\"evenodd\" d=\"M57.518 535.982a2.286 2.286 0 114.572 0 2.286 2.286 0 01-4.572 0zm0-99.836a2.286 2.286 0 114.572-.002 2.286 2.286 0 01-4.572.002zm0-99.837a2.286 2.286 0 114.572-.002 2.286 2.286 0 01-4.572.002zm0-99.837a2.286 2.286 0 114.572-.002 2.286 2.286 0 01-4.572.002z\" cliprule=\"evenodd\"><\/path><\/g><g opacity=\"0.55\"><path stroke=\"#3C4556\" strokelinecap=\"square\" d=\"M979.195-28.206V397.98m81.185-524.745V397.98\"><\/path><path stroke=\"#3C4556\" strokelinecap=\"square\" d=\"M1141.45 168.46H964h177.45zm0 98.334H964h177.45zm0 98.333H964h177.45zm66.55-295H964h244z\" cliprule=\"evenodd\"><\/path><path fill=\"#3C4556\" fillrule=\"evenodd\" d=\"M1138.66 70.148a2.244 2.244 0 104.49 0 2.246 2.246 0 10-4.49-.001zm-80.21 0c0 1.243 1.01 2.251 2.25 2.251s2.25-1.008 2.25-2.251c0-1.243-1.01-2.251-2.25-2.251s-2.25 1.008-2.25 2.25zm-81.707 0a2.25 2.25 0 104.5.004 2.25 2.25 0 00-4.5-.005zm81.707 98.299a2.252 2.252 0 002.25 2.251 2.252 2.252 0 000-4.503 2.253 2.253 0 00-2.25 2.252zm-81.707 0a2.25 2.25 0 104.498 0 2.25 2.25 0 00-2.249-2.252 2.25 2.25 0 00-2.249 2.252zm161.917-.001a2.244 2.244 0 104.49 0 2.246 2.246 0 10-4.49 0zm0 98.299a2.244 2.244 0 104.49 0 2.246 2.246 0 10-4.49 0zm-80.21 0c0 1.243 1.01 2.251 2.25 2.251s2.25-1.008 2.25-2.251c0-1.243-1.01-2.251-2.25-2.251s-2.25 1.008-2.25 2.251zm-81.707 0a2.25 2.25 0 104.5.002 2.25 2.25 0 00-4.5-.002zm81.707 98.299c0 1.243 1.01 2.251 2.25 2.251s2.25-1.008 2.25-2.251c0-1.243-1.01-2.251-2.25-2.251s-2.25 1.008-2.25 2.251zm-81.707 0a2.25 2.25 0 104.5.002 2.25 2.25 0 00-4.5-.002zm161.917 0a2.244 2.244 0 104.49 0 2.246 2.246 0 10-4.49 0z\" cliprule=\"evenodd\"><\/path><\/g><\/svg><div class=\"bstn-blocks-container__wrapper bstn-blocks-container__wrapper--readable-width bstn-blocks-container__wrapper--negative-container\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-2 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-bstn-blocks-heading bstn-blocks-heading bstn-blocks-heading--h2 has-text-align-left bstn-blocks-heading--divider\"><h2 class=\"bstn-blocks-heading__heading-element\">Learn Python Today<\/h2><\/div>\n\n\n\n<p>Get hands-on experience writing code with interactive tutorials in our free online learning platform. <\/p>\n\n\n\n<div style=\"height:16px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list is-style-kg-list-checklist-alternate\"><li>Free and fun<\/li><li>Designed for beginners<\/li><li>No downloads or setup required<\/li><\/ul>\n\n\n\n<div style=\"height:16px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-bstn-button-primary\"><a class=\"wp-block-button__link\" href=\"https:\/\/brainstation.io\/learn\/python\" target=\"_blank\" rel=\"noreferrer noopener\">Get Started<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-video\"><video autoplay loop muted src=\"https:\/\/d3ghupt9z9s6o0.cloudfront.net\/app\/uploads\/2022\/04\/13110643\/Python-promo-clip.mp4\" playsinline><\/video><\/figure>\n<\/div>\n<\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Python supports Object Oriented Programming (OOP) like many other popular programming languages. OOP revolves around the idea of classes and objects. A class in Python is a blueprint from which objects can be constructed. Imagine class in OOP as a sketch by an architect for new building construction. Civil Engineers and construction workers then bring [&hellip;]<\/p>\n","protected":false},"featured_media":0,"parent":130131,"menu_order":0,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[],"class_list":["post-130176","codex-reference","type-codex-reference","status-publish","format-standard","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/brainstation.io\/wp\/api\/wp\/v2\/codex-reference\/130176","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/brainstation.io\/wp\/api\/wp\/v2\/codex-reference"}],"about":[{"href":"https:\/\/brainstation.io\/wp\/api\/wp\/v2\/types\/codex-reference"}],"version-history":[{"count":10,"href":"https:\/\/brainstation.io\/wp\/api\/wp\/v2\/codex-reference\/130176\/revisions"}],"predecessor-version":[{"id":133060,"href":"https:\/\/brainstation.io\/wp\/api\/wp\/v2\/codex-reference\/130176\/revisions\/133060"}],"up":[{"embeddable":true,"href":"https:\/\/brainstation.io\/wp\/api\/wp\/v2\/codex-reference\/130131"}],"wp:attachment":[{"href":"https:\/\/brainstation.io\/wp\/api\/wp\/v2\/media?parent=130176"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/brainstation.io\/wp\/api\/wp\/v2\/categories?post=130176"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/brainstation.io\/wp\/api\/wp\/v2\/tags?post=130176"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}