{"id":22844,"date":"2024-03-16T00:16:57","date_gmt":"2024-03-16T00:16:57","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-do-you-use-the-len-function-in-python\/"},"modified":"2024-03-21T23:50:55","modified_gmt":"2024-03-21T23:50:55","slug":"how-do-you-use-the-len-function-in-python","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-do-you-use-the-len-function-in-python\/","title":{"rendered":"How do you use the len function in Python?"},"content":{"rendered":"<p>The len() function is used to retrieve the length of sequences such as strings, lists, and tuples. It takes one parameter which is the sequence to calculate the length of, and returns the number of elements in the sequence.<\/p>\n<p>Here is an example demonstrating the usage of the len() function:<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-comment\"># \u8ba1\u7b97\u5b57\u7b26\u4e32\u7684\u957f\u5ea6<\/span>\r\nstring = <span class=\"hljs-string\">\"Hello, World!\"<\/span>\r\nlength = <span class=\"hljs-built_in\">len<\/span>(string)\r\n<span class=\"hljs-built_in\">print<\/span>(length)  <span class=\"hljs-comment\"># \u8f93\u51fa\uff1a13<\/span>\r\n\r\n<span class=\"hljs-comment\"># \u8ba1\u7b97\u5217\u8868\u7684\u957f\u5ea6<\/span>\r\nlist_1 = [<span class=\"hljs-number\">1<\/span>, <span class=\"hljs-number\">2<\/span>, <span class=\"hljs-number\">3<\/span>, <span class=\"hljs-number\">4<\/span>, <span class=\"hljs-number\">5<\/span>]\r\nlength = <span class=\"hljs-built_in\">len<\/span>(list_1)\r\n<span class=\"hljs-built_in\">print<\/span>(length)  <span class=\"hljs-comment\"># \u8f93\u51fa\uff1a5<\/span>\r\n\r\n<span class=\"hljs-comment\"># \u8ba1\u7b97\u5143\u7ec4\u7684\u957f\u5ea6<\/span>\r\ntuple_1 = (<span class=\"hljs-number\">1<\/span>, <span class=\"hljs-number\">2<\/span>, <span class=\"hljs-number\">3<\/span>, <span class=\"hljs-number\">4<\/span>, <span class=\"hljs-number\">5<\/span>)\r\nlength = <span class=\"hljs-built_in\">len<\/span>(tuple_1)\r\n<span class=\"hljs-built_in\">print<\/span>(length)  <span class=\"hljs-comment\"># \u8f93\u51fa\uff1a5<\/span>\r\n<\/code><\/pre>\n<p>Please note that the len() function can only be used on objects of sequence type, and attempting to use it on other types of objects will raise a TypeError exception.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The len() function is used to retrieve the length of sequences such as strings, lists, and tuples. It takes one parameter which is the sequence to calculate the length of, and returns the number of elements in the sequence. Here is an example demonstrating the usage of the len() function: # \u8ba1\u7b97\u5b57\u7b26\u4e32\u7684\u957f\u5ea6 string = &#8220;Hello, [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-22844","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How do you use the len function in Python? - Blog - Silicon Cloud<\/title>\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.silicloud.com\/blog\/how-do-you-use-the-len-function-in-python\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How do you use the len function in Python?\" \/>\n<meta property=\"og:description\" content=\"The len() function is used to retrieve the length of sequences such as strings, lists, and tuples. 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