{"id":129988,"date":"2022-04-13T14:59:54","date_gmt":"2022-04-13T18:59:54","guid":{"rendered":"https:\/\/brainstation.io\/?post_type=codex-reference&#038;p=129988"},"modified":"2025-02-04T14:58:56","modified_gmt":"2025-02-04T19:58:56","slug":"dictionary","status":"publish","type":"codex-reference","link":"https:\/\/brainstation.io\/learn\/python\/dictionary","title":{"rendered":"Dictionary"},"content":{"rendered":"\n<header class=\"wp-block-bstn-blocks-hero-with-overview bstn-blocks-hero-with-overview\"><div class=\"bstn-blocks-hero-with-overview__full-width-wrapper bstn-blocks-hero-with-overview__full-width-wrapper--main\"><svg fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"bstn-blocks-hero-with-overview__bg-flair--full\"><g opacity=\"0.35\"><path d=\"M-103.887 96.613H499.5\" stroke=\"#3C4556\" strokelinecap=\"square\"><\/path><path cliprule=\"evenodd\" d=\"M174.55-136.427v254.863-254.863zm139.219 0v254.863-254.863zm139.219 0v254.863-254.863zM35.332-232v350.436V-232z\" stroke=\"#3C4556\" strokelinecap=\"square\"><\/path><path fillrule=\"evenodd\" cliprule=\"evenodd\" d=\"M35.361 100.134c1.76 0 3.187-1.446 3.187-3.23 0-1.783-1.427-3.23-3.187-3.23-1.76 0-3.187 1.447-3.187 3.23 0 1.784 1.427 3.23 3.187 3.23zm139.17 0c1.76 0 3.187-1.446 3.187-3.23 0-1.783-1.427-3.23-3.187-3.23-1.76 0-3.187 1.447-3.187 3.23 0 1.784 1.427 3.23 3.187 3.23zm139.169 0c1.761 0 3.187-1.446 3.187-3.23 0-1.783-1.426-3.23-3.187-3.23-1.76 0-3.187 1.447-3.187 3.23 0 1.784 1.427 3.23 3.187 3.23zm139.17 0c1.76 0 3.187-1.446 3.187-3.23 0-1.783-1.427-3.23-3.187-3.23-1.76 0-3.187 1.447-3.187 3.23 0 1.784 1.427 3.23 3.187 3.23z\" fill=\"#3C4556\"><\/path><path d=\"M-244.061 214.487H499.5\" stroke=\"#3C4556\" strokelinecap=\"square\"><\/path><path cliprule=\"evenodd\" d=\"M174.55 214.009v254.863-254.863zm139.219 0v254.863-254.863zm139.219 0v254.863-254.863zM35.332 118.436v350.436-350.436z\" stroke=\"#3C4556\" strokelinecap=\"square\"><\/path><path fillrule=\"evenodd\" cliprule=\"evenodd\" d=\"M35.361 218.03c1.76 0 3.187-1.446 3.187-3.23 0-1.783-1.427-3.229-3.187-3.229-1.76 0-3.187 1.446-3.187 3.229 0 1.784 1.427 3.23 3.187 3.23zm139.17 0c1.76 0 3.187-1.446 3.187-3.23 0-1.783-1.427-3.229-3.187-3.229-1.76 0-3.187 1.446-3.187 3.229 0 1.784 1.427 3.23 3.187 3.23zm139.169 0c1.761 0 3.187-1.446 3.187-3.23 0-1.783-1.426-3.229-3.187-3.229-1.76 0-3.187 1.446-3.187 3.229 0 1.784 1.427 3.23 3.187 3.23zm139.17 0c1.76 0 3.187-1.446 3.187-3.23 0-1.783-1.427-3.229-3.187-3.229-1.76 0-3.187 1.446-3.187 3.229 0 1.784 1.427 3.23 3.187 3.23z\" fill=\"#3C4556\"><\/path><path d=\"M534.544 96.613h140.811m138.263 0H1417\" stroke=\"#3C4556\" strokelinecap=\"square\"><\/path><path cliprule=\"evenodd\" d=\"M674.718 96.772v21.664-21.664zM813.618-232v350.436V-232zm139.218 0v350.436V-232z\" stroke=\"#3C4556\" strokelinecap=\"square\"><\/path><path fillrule=\"evenodd\" cliprule=\"evenodd\" d=\"M535.357 100.134c1.761 0 3.187-1.446 3.187-3.23 0-1.783-1.426-3.23-3.187-3.23-1.76 0-3.187 1.447-3.187 3.23 0 1.784 1.427 3.23 3.187 3.23zm139.17 0c1.76 0 3.187-1.446 3.187-3.23 0-1.783-1.427-3.23-3.187-3.23-1.76 0-3.187 1.447-3.187 3.23 0 1.784 1.427 3.23 3.187 3.23zm139.169 0c1.761 0 3.187-1.446 3.187-3.23 0-1.783-1.426-3.23-3.187-3.23-1.76 0-3.187 1.447-3.187 3.23 0 1.784 1.427 3.23 3.187 3.23zm139.17 0c1.76 0 3.187-1.446 3.187-3.23 0-1.783-1.427-3.23-3.187-3.23-1.76 0-3.187 1.447-3.187 3.23 0 1.784 1.427 3.23 3.187 3.23z\" fill=\"#3C4556\"><\/path><path d=\"M673.444 214.487H1417\" stroke=\"#3C4556\" strokelinecap=\"square\"><\/path><path cliprule=\"evenodd\" d=\"M674.718 118.436v228.739-228.739zm138.9 0v350.436-350.436zm139.218 0v350.436-350.436z\" stroke=\"#3C4556\" strokelinecap=\"square\"><\/path><path fillrule=\"evenodd\" cliprule=\"evenodd\" d=\"M813.696 218.03c1.761 0 3.187-1.446 3.187-3.23 0-1.783-1.426-3.229-3.187-3.229-1.76 0-3.187 1.446-3.187 3.229 0 1.784 1.427 3.23 3.187 3.23zm139.17 0c1.76 0 3.187-1.446 3.187-3.23 0-1.783-1.427-3.229-3.187-3.229-1.76 0-3.187 1.446-3.187 3.229 0 1.784 1.427 3.23 3.187 3.23zm-278.339 0c1.76 0 3.187-1.446 3.187-3.23 0-1.783-1.427-3.229-3.187-3.229-1.76 0-3.187 1.446-3.187 3.229 0 1.784 1.427 3.23 3.187 3.23z\" fill=\"#3C4556\"><\/path><\/g><\/svg><div class=\"bstn-blocks-hero-with-overview__container\"><div class=\"bstn-blocks-hero-with-overview__copy-container\"><img decoding=\"async\" class=\"bstn-blocks-hero-with-overview__title-icon\" src=\"https:\/\/d3ghupt9z9s6o0.cloudfront.net\/app\/uploads\/2022\/04\/12102439\/Python-Light.svg\" alt=\"\"\/><p class=\"bstn-blocks-hero-with-overview__subtitle\">python tutorial<\/p><h1 class=\"bstn-blocks-hero-with-overview__title\">Python Dictionary<\/h1><p class=\"bstn-blocks-hero-with-overview__description\">Learn more about Python, one of the world\u2019s most versatile and popular programming languages.<\/p><\/div><div class=\"bstn-blocks-hero-with-overview__image-container\"><img decoding=\"async\" class=\"bstn-blocks-hero-with-overview__image\" src=\"https:\/\/d3ghupt9z9s6o0.cloudfront.net\/app\/uploads\/2022\/04\/12115006\/Python-Light-Transparent.svg\" alt=\"\"\/><\/div><\/div><\/div><div class=\"bstn-blocks-hero-with-overview__full-width-wrapper bstn-blocks-hero-with-overview__full-width-wrapper--offset\"><div class=\"bstn-blocks-hero-with-overview__container\"><div class=\"bstn-blocks-hero-with-overview__card-container\"><div class=\"bstn-blocks-hero-with-overview__copy-card\"><nav class=\"bstn-blocks-hero-overview\"><h2 class=\"bstn-blocks-hero-overview__title\"><meta charset=\"utf-8\">Tutorial Contents<\/h2><ol class=\"bstn-blocks-hero-overview__list\">\n<li class=\"wp-block-bstn-blocks-overview-link bstn-blocks-hero-overview-link bstn-blocks-hero-overview-link--indent-0\" style=\"margin-left:0px\"><a class=\"bstn-blocks-hero-overview-link__anchor\" href=\"#creating-a-python-dictionary\">Creating a Python Dictionary<\/a><\/li>\n\n\n\n<li class=\"wp-block-bstn-blocks-overview-link bstn-blocks-hero-overview-link bstn-blocks-hero-overview-link--indent-0\" style=\"margin-left:0px\"><a class=\"bstn-blocks-hero-overview-link__anchor\" href=\"#accessing-a-value-in-dictionary\">Accessing a Value in Dictionary<\/a><\/li>\n\n\n\n<li class=\"wp-block-bstn-blocks-overview-link bstn-blocks-hero-overview-link bstn-blocks-hero-overview-link--indent-0\" style=\"margin-left:0px\"><a class=\"bstn-blocks-hero-overview-link__anchor\" href=\"#updating-a-value-in-dictionary\">Updating a Value in Dictionary<\/a><\/li>\n\n\n\n<li class=\"wp-block-bstn-blocks-overview-link bstn-blocks-hero-overview-link bstn-blocks-hero-overview-link--indent-0\" style=\"margin-left:0px\"><a class=\"bstn-blocks-hero-overview-link__anchor\" href=\"#deleting-a-value-in-dictionary\">Deleting a Value in Dictionary<\/a><\/li>\n\n\n\n<li class=\"wp-block-bstn-blocks-overview-link bstn-blocks-hero-overview-link bstn-blocks-hero-overview-link--indent-0\" style=\"margin-left:0px\"><a class=\"bstn-blocks-hero-overview-link__anchor\" href=\"#deleting-entire-dictionary\">Deleting Entire Dictionary<\/a><\/li>\n<\/ol><\/nav><\/div><\/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 dictionaries are another powerful data type for representing information in Python. Dictionaries are an unordered collection of key-value pairs. There are many different ways of creating a Python dictionary however the easiest way is to use curly brackets&nbsp;<code>{}<\/code>. A dictionary is of the form<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>My_dict = {key: value, anotherKey: anotherValue}\n<\/code><\/pre>\n\n\n\n<p class=\"is-style-bstn-paragraph-documentation-body\">Some of the important things to remember about dictionaries are:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Each key in the dictionary has to be unique<\/li><li>Unlike list, dictionaries are indexed by keys<\/li><li>A specific value in the dictionary can be retrieved by using it\u2019s key.<\/li><li>Multiple key value pairs are separated by comma&nbsp;<code>,<\/code><\/li><li>Key and value are separated by a colon&nbsp;<code>:<\/code><\/li><\/ul>\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<hr class=\"wp-block-bstn-blocks-section-divider bstn-blocks-section-divider bstn-blocks-section-divider--grey bstn-blocks-section-divider--32\"\/>\n\n\n\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--h3 bstn-blocks-heading--mt-0 has-text-align-left\" id=\"creating-a-python-dictionary\"><h2 class=\"bstn-blocks-heading__heading-element\">Creating a Python Dictionary<\/h2><\/div>\n\n\n\n<p class=\"is-style-bstn-paragraph-documentation-body\">Let\u2019s create a python dictionary using<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Curly brackets<\/li><li>using dict()<\/li><\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\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\" 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\"><code># create a dictionary using curly brackets called john that stores name, phone, email, course and address\njohn = {'name': 'John', 'phone': 1234567890, 'email': 'john.doe@gmail.com', 'course: Python v3', 'address': '123 Front St City Country'}\nprint(john)\n{'name': 'John', 'phone': 1234567890, 'email': 'john.doe@gmail.com', 'course': 'Python v3',\n'address': '123 Front St City Country'}\n# create a dictionary using dict() called adam that stores name, phone, email, course\nadam = dict ({'name': 'Adam', 'phone': 1234567890, 'email': 'adam.smith@email.com',\n'course': 'Python v3'})\nprint(adam)\n{'name': 'Adam', 'phone': 1234567890, 'email': 'adam.smith@email.com', 'course': 'Python v3'}\nprint(john)\n{'name': 'John', 'phone': 1234567890, 'emall': 'john.doe@gmail.com', 'course': 'Python v3', 'address': '123 Front St City Country'}\nprint(adam)\n{'name': 'Adam', 'phone': 1234567890, 'email': 'adam.smith@email.com', 'course': 'Python v3'}<\/code><\/pre><\/div>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-bstn-blocks-section-divider bstn-blocks-section-divider bstn-blocks-section-divider--grey bstn-blocks-section-divider--32\"\/>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-3 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--h3 bstn-blocks-heading--mt-0 has-text-align-left\" id=\"accessing-a-value-in-dictionary\"><h2 class=\"bstn-blocks-heading__heading-element\">Accessing a Value in Dictionary<\/h2><\/div>\n\n\n\n<p class=\"is-style-bstn-paragraph-documentation-body\">Values in the dictionary can be accessed by using it\u2019s relevant keys inside of a square bracket []. Let\u2019s try to access the name and email of students&nbsp;<code>adam<\/code>&nbsp;and&nbsp;<code>john<\/code>&nbsp;we just created.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\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\" 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\"><code># create a dictionary using curly brackets called john that stores name, phone, email, course and address\njohn = {'name': 'John', 'phone': 1234567890, 'email': 'john.doe@gmail.com', 'course': 'Python v3',\n'address': '123 Front St City Country'}\nprint(john['name'])\nprint(john['email'])\nJohn\njohn.doe@gmail.com\n# create a dictionary using dict() called adam that stores name, phone, email, course\nadam = dict({'name': 'Adam', 'phone': 1234567890, 'email': 'adam.smith@email.com', 'course': 'Python v3'})\nprint(adam['name'])\nprint(adam['email'])\nAdam\nadam.smith@email.com<\/code><\/pre><\/div>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-bstn-blocks-section-divider bstn-blocks-section-divider bstn-blocks-section-divider--grey bstn-blocks-section-divider--32\"\/>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-4 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--h3 bstn-blocks-heading--mt-0 has-text-align-left\" id=\"updating-a-value-in-dictionary\"><h2 class=\"bstn-blocks-heading__heading-element\">Updating a Value in Dictionary<\/h2><\/div>\n\n\n\n<p class=\"is-style-bstn-paragraph-documentation-body\">Values in the dictionary can be updated by using its key in a square bracket and assigning a new value to it using an equal sign&nbsp;<code>=<\/code>. Let\u2019s update the phone number for both students&nbsp;<code>adam<\/code>&nbsp;and&nbsp;<code>john<\/code><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\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\" 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\"><code># create a dictionary using curly brackets called john that stores name, phone, email, course and address\njohn = {'name': 'John', 'phone': 1234567890, 'email': 'john.doe@gmail.com', 'course': 'Python v3', 'address': '123 Front St City Country'}\nprint(john)\n{'name': 'John','phone': 1234567890, 'email': 'john.doe@gmail.com', 'course': 'Python v3', 'address': '123 Front St City Country'}\n# create a dictionary using dict() called adam that stores name, phone, email, course\nadam = dict ({'name': 'Adam', 'phone': 1234567890, 'email': 'adam.smith@email.com', 'course': 'Python v3'})\nprint(adam)\n{'name': 'Adam', 'phone': 1234567890, 'email': 'adam.smith@email.com', 'course': 'Python v3'}\n# update phone numbers for john and adam\njohn['phone'] = 9876543210\nadam['phone'] = 4567890123\nprint(john)\nprint(adam)\n{'name': 'John', 'phone': 9876543210, 'email': 'john.doe@gmail.com', 'course': 'Python v3', 'address': '123 Front St City Country'}\n{'name': 'Adam', 'phone': 4567890123, 'email': 'adam.smith@email.com', 'course': 'Python v3'}<\/code><\/pre><\/div>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-bstn-blocks-section-divider bstn-blocks-section-divider bstn-blocks-section-divider--grey bstn-blocks-section-divider--32\"\/>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-5 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--h3 bstn-blocks-heading--mt-0 has-text-align-left\" id=\"deleting-a-value-in-dictionary\"><h2 class=\"bstn-blocks-heading__heading-element\">Deleting a Value in Dictionary<\/h2><\/div>\n\n\n\n<p class=\"is-style-bstn-paragraph-documentation-body\">Values in the dictionary can be deleted by using the pop method and specify the key of the value to be deleted as&nbsp;<code>pop(key)<\/code>. Deleting a value also removes the entire key-value pair from the dictionary. Let\u2019s try to delete the address for student&nbsp;<code>john<\/code>.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\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\" 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\"><code># create a dictionary using curly brackets called john that stores name, phone, email, course and address\nJohn = {'name': 'John', 'phone': 1234567890, 'email': 'john.doe@gmail.com', \"course': 'Python v3', 'address': '123 Front St City Country'}\nprint(john)\n{'name': 'John', 'phone': 1234567890, 'email': 'john.doe@gmail.com', 'course': 'Python v3', 'address': '123 Front St City Country'}\n# create a dictionary using dict() called adam that stores name, phone, email, course\nadam = dict ({'name': 'Adam', 'phone': 1234567890, 'email': 'adam.smith@email.com', 'course': 'Python v3'})\nprint(adam)\n{'name': 'Adam', 'phone': 1234567890, 'email': 'adam.smith@email.com', 'course': 'Python v3'}\n# delete address for john\njohn.pop('address')\nprint(john)\n{'name': 'John', 'phone': 1234567890, 'email': 'john.doe@gmail.com', 'course': 'Python v3'}<\/code><\/pre><\/div>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-bstn-blocks-section-divider bstn-blocks-section-divider bstn-blocks-section-divider--grey bstn-blocks-section-divider--32\"\/>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-6 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--h3 bstn-blocks-heading--mt-0 has-text-align-left\" id=\"deleting-entire-dictionary\"><h2 class=\"bstn-blocks-heading__heading-element\">Deleting Entire Dictionary<\/h2><\/div>\n\n\n\n<p class=\"is-style-bstn-paragraph-documentation-body\">An entire dictionary can be deleted using the&nbsp;<code>del<\/code>&nbsp;keyword. This deletes the entire dictionary and not just the key-value pairs in it. Let\u2019s delete our dictionary structure for student&nbsp;<code>adam<\/code>. As you can see below, accessing the dictionary after deleting it throws an error.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\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\" 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\"><code># create a dictionary using curly brackets called john that stores name, phone, email, course and address\njohn = {'name': 'John', 'phone': 1234567890, 'email': 'john.doe@gmail.com', 'course': 'Python v3', 'address': '123 Front St City Country'}\nprint(john)\n{'name': 'John', 'phone': 1234567890, 'email': 'john.doe@gmail.com', 'course': 'Python v3', 'address': '123 Front St City Country'}\n# create a dictionary using dict() called adam that stores name, phone, email, course\nadam = dict({'name': 'Adam', 'phone': 1234567890, 'email': 'adam.smith@email.com', 'course': 'Python v3'})\nprint(adam)\n{'name': 'Adam', 'phone': 1234567890, 'email': 'adam.smith@email.com', 'course': 'Python v3'}\n# delete dictionary structure adam\ndel adam\nprint(adam)\nNameError\tTraceback (most recent call last)\n&lt;ipython-input-35-a971909cf5b7> in &lt;module>\n    2 del adam\n    3\n----> 4 print(adam)\nNameError: name 'adam' is not defined<\/code><\/pre><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-bstn-blocks-content-navigation-footer bstn-blocks-content-nav-footer\"><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\/list\"><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\" 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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 dictionaries are another powerful data type for representing information in Python. Dictionaries are an unordered collection of key-value pairs. There are many different ways of creating a Python dictionary however the easiest way is to use curly brackets&nbsp;{}. A dictionary is of the form Some of the important things to remember about dictionaries are: [&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-129988","codex-reference","type-codex-reference","status-publish","format-standard","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/brainstation.io\/wp\/api\/wp\/v2\/codex-reference\/129988","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\/129988\/revisions"}],"predecessor-version":[{"id":131230,"href":"https:\/\/brainstation.io\/wp\/api\/wp\/v2\/codex-reference\/129988\/revisions\/131230"}],"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=129988"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/brainstation.io\/wp\/api\/wp\/v2\/categories?post=129988"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/brainstation.io\/wp\/api\/wp\/v2\/tags?post=129988"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}