{"id":25488,"date":"2024-03-16T05:01:54","date_gmt":"2024-03-16T05:01:54","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-find-completely-identical-rows-in-python\/"},"modified":"2024-03-22T06:17:43","modified_gmt":"2024-03-22T06:17:43","slug":"how-to-find-completely-identical-rows-in-python","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-find-completely-identical-rows-in-python\/","title":{"rendered":"How to find completely identical rows in Python?"},"content":{"rendered":"<p>You can use the Counter from the collections module in Python to find completely duplicated lines. First, you need to open the file and read its contents line by line. Then, add each line to a list and use Counter to calculate the frequency of each line. Finally, identify the lines with a count greater than 1, as these are the completely duplicated lines.<\/p>\n<p>Here is an example code:<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">from<\/span> collections <span class=\"hljs-keyword\">import<\/span> Counter\r\n\r\n<span class=\"hljs-keyword\">def<\/span> <span class=\"hljs-title function_\">find_duplicate_lines<\/span>(<span class=\"hljs-params\">file_path<\/span>):\r\n    lines = []\r\n    \r\n    <span class=\"hljs-keyword\">with<\/span> <span class=\"hljs-built_in\">open<\/span>(file_path, <span class=\"hljs-string\">'r'<\/span>) <span class=\"hljs-keyword\">as<\/span> file:\r\n        <span class=\"hljs-keyword\">for<\/span> line <span class=\"hljs-keyword\">in<\/span> file:\r\n            lines.append(line.strip())\r\n    \r\n    duplicates = [line <span class=\"hljs-keyword\">for<\/span> line, count <span class=\"hljs-keyword\">in<\/span> Counter(lines).items() <span class=\"hljs-keyword\">if<\/span> count &gt; <span class=\"hljs-number\">1<\/span>]\r\n    \r\n    <span class=\"hljs-keyword\">return<\/span> duplicates\r\n\r\nfile_path = <span class=\"hljs-string\">'file.txt'<\/span>  <span class=\"hljs-comment\"># \u66ff\u6362\u4e3a\u4f60\u7684\u6587\u4ef6\u8def\u5f84<\/span>\r\nduplicate_lines = find_duplicate_lines(file_path)\r\n\r\n<span class=\"hljs-keyword\">if<\/span> duplicate_lines:\r\n    <span class=\"hljs-built_in\">print<\/span>(<span class=\"hljs-string\">'\u5b8c\u5168\u91cd\u590d\u7684\u884c\uff1a'<\/span>)\r\n    <span class=\"hljs-keyword\">for<\/span> line <span class=\"hljs-keyword\">in<\/span> duplicate_lines:\r\n        <span class=\"hljs-built_in\">print<\/span>(line)\r\n<span class=\"hljs-keyword\">else<\/span>:\r\n    <span class=\"hljs-built_in\">print<\/span>(<span class=\"hljs-string\">'\u6ca1\u6709\u627e\u5230\u5b8c\u5168\u91cd\u590d\u7684\u884c\u3002'<\/span>)\r\n<\/code><\/pre>\n<p>Please note that the above code assumes that each line is a text line (string) and ignores whitespace characters. If you need to consider other types of lines or need to distinguish whitespace characters when comparing, you can modify the code accordingly.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>You can use the Counter from the collections module in Python to find completely duplicated lines. First, you need to open the file and read its contents line by line. Then, add each line to a list and use Counter to calculate the frequency of each line. Finally, identify the lines with a count greater [&hellip;]<\/p>\n","protected":false},"author":10,"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-25488","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 to find completely identical rows 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-to-find-completely-identical-rows-in-python\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to find completely identical rows in Python?\" \/>\n<meta property=\"og:description\" content=\"You can use the Counter from the collections module in Python to find completely duplicated lines. 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