{"id":13411,"date":"2024-03-15T07:02:39","date_gmt":"2024-03-15T07:02:39","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-retrieve-the-length-of-a-set-after-removing-duplicates-from-a-stream\/"},"modified":"2025-08-05T17:55:25","modified_gmt":"2025-08-05T17:55:25","slug":"how-to-retrieve-the-length-of-a-set-after-removing-duplicates-from-a-stream","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-retrieve-the-length-of-a-set-after-removing-duplicates-from-a-stream\/","title":{"rendered":"Python Set Length: Remove Duplicates &#038; Count Unique"},"content":{"rendered":"<p>In Python, you can convert a list to a set using the set() method, which automatically removes duplicate elements. Then, use the len() function to get the length of the set.<\/p>\n<p>Here is an example code:<\/p>\n<pre class=\"post-pre\"><code>stream = [1, 2, 3, 4, 4, 5, 5, 6, 7, 7]\r\nunique_stream = set(stream)\r\nlength = len(unique_stream)\r\n\r\nprint(length)\r\n<\/code><\/pre>\n<p>The output is 7.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In Python, you can convert a list to a set using the set() method, which automatically removes duplicate elements. Then, use the len() function to get the length of the set. Here is an example code: stream = [1, 2, 3, 4, 4, 5, 5, 6, 7, 7] unique_stream = set(stream) length = len(unique_stream) print(length) [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[17877,224,72,774,4221],"class_list":["post-13411","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-count-unique","tag-data-structures","tag-python","tag-remove-duplicates","tag-set"],"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>Python Set Length: Remove Duplicates &amp; Count Unique - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn how to get unique element count in Python streams using sets. Quick code example included.\" \/>\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-to-retrieve-the-length-of-a-set-after-removing-duplicates-from-a-stream\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Python Set Length: Remove Duplicates &amp; Count Unique\" \/>\n<meta property=\"og:description\" content=\"Learn how to get unique element count in Python streams using sets. Quick code example included.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/blog\/how-to-retrieve-the-length-of-a-set-after-removing-duplicates-from-a-stream\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/SiliCloudGlobal\/\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-15T07:02:39+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-05T17:55:25+00:00\" \/>\n<meta name=\"author\" content=\"William Carter\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:site\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"William Carter\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-retrieve-the-length-of-a-set-after-removing-duplicates-from-a-stream\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-retrieve-the-length-of-a-set-after-removing-duplicates-from-a-stream\/\"},\"author\":{\"name\":\"William Carter\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/f697031891aacefc4b681d139781d3c0\"},\"headline\":\"Python Set Length: Remove Duplicates &#038; Count Unique\",\"datePublished\":\"2024-03-15T07:02:39+00:00\",\"dateModified\":\"2025-08-05T17:55:25+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-retrieve-the-length-of-a-set-after-removing-duplicates-from-a-stream\/\"},\"wordCount\":46,\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"keywords\":[\"count unique\",\"data structures\",\"Python\",\"remove duplicates\",\"set\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-retrieve-the-length-of-a-set-after-removing-duplicates-from-a-stream\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/how-to-retrieve-the-length-of-a-set-after-removing-duplicates-from-a-stream\/\",\"name\":\"Python Set Length: Remove Duplicates & Count Unique - Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#website\"},\"datePublished\":\"2024-03-15T07:02:39+00:00\",\"dateModified\":\"2025-08-05T17:55:25+00:00\",\"description\":\"Learn how to get unique element count in Python streams using sets. 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