{"id":130306,"date":"2023-05-10T17:34:41","date_gmt":"2023-05-10T12:04:41","guid":{"rendered":"https:\/\/www.vskills.in\/certification\/tutorial\/?page_id=130306"},"modified":"2024-04-12T14:33:58","modified_gmt":"2024-04-12T09:03:58","slug":"dictionary","status":"publish","type":"page","link":"https:\/\/www.vskills.in\/certification\/tutorial\/dictionary\/","title":{"rendered":"Dictionary"},"content":{"rendered":"\n<p><strong>Dictionary in Python<\/strong><\/p>\n\n\n\n<p>In Python, a dictionary is a built-in data structure that allows us to store a collection of key-value pairs. Each key in a dictionary maps to a corresponding value, similar to how words in a dictionary map to their definitions.<\/p>\n\n\n\n<p>Dictionaries are defined using curly braces <code>{}<\/code>, with each key-value pair separated by a colon <code>:<\/code> and each pair separated by a comma. For example, we can create a dictionary that maps fruits to their colors like this:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">my_dict = {'apple': 'red', 'banana': 'yellow', 'cherry': 'red'}\r<\/pre>\n\n\n\n<p>We can access the value associated with a particular key using square bracket notation:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">color = my_dict['apple']\r<\/pre>\n\n\n\n<p>We can also modify the value associated with a key or add a new key-value pair to the dictionary:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">my_dict['apple'] = 'green'   # Change the value associated with the 'apple' key\r\nmy_dict['pear'] = 'green'    # Add a new key-value pair to the dictionary\r<\/pre>\n\n\n\n<p>We can loop over the keys or values in a dictionary using the <code>keys()<\/code> and <code>values()<\/code> methods:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">for key in my_dict.keys():\r\n    print(key)\r\n\r\nfor value in my_dict.values():\r\n    print(value)\r<\/pre>\n\n\n\n<p>We can also loop over both the keys and values using the <code>items()<\/code> method:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">for key, value in my_dict.items():\r\n    print(key, value)\r<\/pre>\n\n\n\n<p>Overall, dictionaries are a powerful data structure in Python that allow us to efficiently store and retrieve data using meaningful keys. They are commonly used in many programming tasks, such as data processing and web development.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Apply for Python Certification!<\/strong><\/h3>\n\n\n\n<p><a href=\"https:\/\/www.vskills.in\/certification\/certified-python-developer\">https:\/\/www.vskills.in\/certification\/certified-python-developer<\/a><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong><a href=\"https:\/\/www.vskills.in\/certification\/tutorial\/python-developer\/\" target=\"_blank\" rel=\"noreferrer noopener\">Back to Tutorials<\/a><\/strong><\/h4>\n","protected":false},"excerpt":{"rendered":"<p>Dictionary in Python In Python, a dictionary is a built-in data structure that allows us to store a collection of key-value pairs. Each key in a dictionary maps to a corresponding value, similar to how words in a dictionary map to their definitions. Dictionaries are defined using curly braces {}, with each key-value pair separated&#8230;<\/p>\n","protected":false},"author":23,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"categories":[252],"tags":[],"class_list":["post-130306","page","type-page","status-publish","hentry","category-python-developer"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Dictionary - Tutorial<\/title>\n<meta name=\"description\" content=\"Dictionary\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.vskills.in\/certification\/tutorial\/dictionary\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Dictionary - Tutorial\" \/>\n<meta property=\"og:description\" content=\"Dictionary\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.vskills.in\/certification\/tutorial\/dictionary\/\" \/>\n<meta property=\"og:site_name\" content=\"Tutorial\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/vskills.in\/\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-12T09:03:58+00:00\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.vskills.in\/certification\/tutorial\/dictionary\/\",\"url\":\"https:\/\/www.vskills.in\/certification\/tutorial\/dictionary\/\",\"name\":\"Dictionary - 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