{"id":24706,"date":"2022-12-05T03:36:58","date_gmt":"2022-12-04T22:06:58","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-how-to-insert-list-of-list-items-in-already-created-dataframe-in-pandas-closed\/"},"modified":"2022-12-05T03:36:58","modified_gmt":"2022-12-04T22:06:58","slug":"solved-how-to-insert-list-of-list-items-in-already-created-dataframe-in-pandas-closed","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-how-to-insert-list-of-list-items-in-already-created-dataframe-in-pandas-closed\/","title":{"rendered":"[Solved] How to insert list of list items in already created dataframe in pandas? [closed]"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-64585234\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"64585234\" data-parentid=\"64585202\" data-score=\"1\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<p>You can use <code>np.ravel<\/code>:<\/p>\n<pre><code>df[\"new\"] = np.array(list_item).ravel()\n\nprint (df)\n\n     Name Code City new\n0    Shiv   Sh  ALD   1\n1   Kumar   KR   PJ   2\n2     Ram   RM   KL   3\n3   Shank   SK   RM   5\n4    Jeet   JT  PKG   6\n5    Atul   AT  FTP   7\n6  Ganesh   GS   TL   9\n7  Kishor   KH   KI  10\n8   Gagan   GN   AK  11\n<\/code><\/pre>\n<hr>\n<p>After Updated Question:<\/p>\n<pre><code>list_item = [['1|x', '2|x', '3|-'],\n             ['5|x', '6|-', '7|x'],\n             ['9|x', '10|x', '11|-']]\ns = pd.Series(np.array(list_item).ravel())\ndf[['Num', 'Expr']] = s.str.split('|', n=1, expand=True)\n\ndf\n     Name Code City Num Expr\n0    Shiv   Sh  ALD   1    x\n1   Kumar   KR   PJ   2    x\n2     Ram   RM   KL   3    -\n3   Shank   SK   RM   5    x\n4    Jeet   JT  PKG   6    -\n5    Atul   AT  FTP   7    x\n6  Ganesh   GS   TL   9    x\n7  Kishor   KH   KI  10    x\n8   Gagan   GN   AK  11    -\n<\/code><\/pre>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">6<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved How to insert list of list items in already created dataframe in pandas? [closed] <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] You can use np.ravel: df[&#8220;new&#8221;] = np.array(list_item).ravel() print (df) Name Code City new 0 Shiv Sh ALD 1 1 Kumar KR PJ 2 2 Ram RM KL 3 3 Shank SK RM 5 4 Jeet JT PKG 6 5 Atul AT FTP 7 6 Ganesh GS TL 9 7 Kishor KH KI 10 8 &#8230; <a title=\"[Solved] How to insert list of list items in already created dataframe in pandas? [closed]\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-how-to-insert-list-of-list-items-in-already-created-dataframe-in-pandas-closed\/\" aria-label=\"More on [Solved] How to insert list of list items in already created dataframe in pandas? [closed]\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[461,415,349],"class_list":["post-24706","post","type-post","status-publish","format-standard","hentry","category-solved","tag-dataframe","tag-pandas","tag-python"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>[Solved] How to insert list of list items in already created dataframe in pandas? 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