{"id":11891,"date":"2022-09-28T22:47:26","date_gmt":"2022-09-28T17:17:26","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-is-there-a-way-to-sum-a-list-based-on-another-list\/"},"modified":"2022-09-28T22:47:26","modified_gmt":"2022-09-28T17:17:26","slug":"solved-is-there-a-way-to-sum-a-list-based-on-another-list","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-is-there-a-way-to-sum-a-list-based-on-another-list\/","title":{"rendered":"[Solved] Is there a way to sum a list based on another list?"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-55427093\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"55427093\" data-parentid=\"55425677\" data-score=\"0\" 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>This might help get you started on accomplishing your ultimate goal:<\/p>\n<pre><code>Date = ['01-01-2019', '02-01-2019', '02-01-2019']\n\nTime = ['07:00:00', '06:00:00','02:00:00']\n\nimport datetime\n\ndata = zip(Date, Time)\n\ndates = []\n\nfor d in data:\n    dt = datetime.datetime.strptime(\"{}, {}\".format(*d), \"%m-%d-%Y, %H:%M:%S\")\n    dates.append(dt)\n\ntotals = {}\nfor d in dates:\n    if d.date() not in totals: totals[d.date()] = d.hour\n    else: totals[d.date()] += d.hour\n\nfor date, time in totals.items():\n    if time &gt;= 8:\n        # do something\n        print('do something:', date)\n    else:\n        print('do something else.')\n<\/code><\/pre>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">1<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved Is there a way to sum a list based on another list? <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] This might help get you started on accomplishing your ultimate goal: Date = [&#8217;01-01-2019&#8242;, &#8217;02-01-2019&#8242;, &#8217;02-01-2019&#8242;] Time = [&#8217;07:00:00&#8242;, &#8217;06:00:00&#8242;,&#8217;02:00:00&#8242;] import datetime data = zip(Date, Time) dates = [] for d in data: dt = datetime.datetime.strptime(&#8220;{}, {}&#8221;.format(*d), &#8220;%m-%d-%Y, %H:%M:%S&#8221;) dates.append(dt) totals = {} for d in dates: if d.date() not in totals: totals[d.date()] = &#8230; <a title=\"[Solved] Is there a way to sum a list based on another list?\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-is-there-a-way-to-sum-a-list-based-on-another-list\/\" aria-label=\"More on [Solved] Is there a way to sum a list based on another list?\">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":[349],"class_list":["post-11891","post","type-post","status-publish","format-standard","hentry","category-solved","tag-python"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] Is there a way to sum a list based on another list? - JassWeb<\/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:\/\/jassweb.com\/solved\/solved-is-there-a-way-to-sum-a-list-based-on-another-list\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Is there a way to sum a list based on another list? - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] This might help get you started on accomplishing your ultimate goal: Date = [&#039;01-01-2019&#039;, &#039;02-01-2019&#039;, &#039;02-01-2019&#039;] Time = [&#039;07:00:00&#039;, &#039;06:00:00&#039;,&#039;02:00:00&#039;] import datetime data = zip(Date, Time) dates = [] for d in data: dt = datetime.datetime.strptime(&quot;{}, {}&quot;.format(*d), &quot;%m-%d-%Y, %H:%M:%S&quot;) dates.append(dt) totals = {} for d in dates: if d.date() not in totals: totals[d.date()] = ... 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