[{"data":1,"prerenderedAt":2642},["ShallowReactive",2],{"doc:\u002Fautomating-reporting-workflows\u002Femailing-excel-reports-with-smtplib\u002Fsend-a-weekly-digest-of-several-reports-in-one-email":3,"surround:\u002Fautomating-reporting-workflows\u002Femailing-excel-reports-with-smtplib\u002Fsend-a-weekly-digest-of-several-reports-in-one-email":2611,"ancestors:\u002Fautomating-reporting-workflows\u002Femailing-excel-reports-with-smtplib\u002Fsend-a-weekly-digest-of-several-reports-in-one-email":2620,"children:\u002Fautomating-reporting-workflows\u002Femailing-excel-reports-with-smtplib\u002Fsend-a-weekly-digest-of-several-reports-in-one-email":2625,"related:\u002Fautomating-reporting-workflows\u002Femailing-excel-reports-with-smtplib\u002Fsend-a-weekly-digest-of-several-reports-in-one-email":2626},{"id":4,"title":5,"body":6,"dateModified":2578,"datePublished":2578,"description":2579,"extension":2580,"faq":2581,"keyword":2590,"kind":2591,"meta":2592,"navigation":111,"path":2600,"seo":2601,"slug":2604,"stem":2605,"topics":2606,"type":2609,"__hash__":2610},"docs\u002Fautomating-reporting-workflows\u002Femailing-excel-reports-with-smtplib\u002Fsend-a-weekly-digest-of-several-reports-in-one-email\u002Findex.md","Send a Weekly Digest of Several Reports in One Email",{"type":7,"value":8,"toc":2567},"minimark",[9,19,24,53,65,69,885,896,1040,1044,1301,1308,1380,1384,2200,2219,2433,2437,2448,2452,2489,2493,2499,2503,2512,2518,2524,2530,2534,2563],[10,11,12,13,18],"p",{},"A team that automates its reporting soon has a problem of its own making: every Monday morning brings five or six separate emails — sales, stock, debtors, open orders, web traffic — each with an attachment, each sent by a different job at a slightly different time. People stop opening them. A weekly digest fixes that by sending one email that summarises every report in a few lines, with the headline figure from each, and attaches or links the full workbooks for anyone who wants the detail. It also makes failures visible: when one of the reports was not produced, the digest says so, rather than relying on someone noticing an email that never arrived. This page builds a digest from a small manifest of the week's reports: it reads a headline figure from each workbook, assembles one HTML email with a plain-text version, keeps attachments under a size limit, flags missing reports and writes a preview before anything is sent. It belongs to ",[14,15,17],"a",{"href":16},"\u002Fautomating-reporting-workflows\u002Femailing-excel-reports-with-smtplib\u002F","Emailing Excel Reports with smtplib",".",[20,21,23],"h2",{"id":22},"prerequisites","Prerequisites",[25,26,31],"pre",{"className":27,"code":28,"language":29,"meta":30,"style":30},"language-bash shiki shiki-themes github-light github-dark-high-contrast","pip install pandas openpyxl\n","bash","",[32,33,34],"code",{"__ignoreMap":30},[35,36,39,43,47,50],"span",{"class":37,"line":38},"line",1,[35,40,42],{"class":41},"sMTad","pip",[35,44,46],{"class":45},"srMev"," install",[35,48,49],{"class":45}," pandas",[35,51,52],{"class":45}," openpyxl\n",[10,54,55,56,60,61,64],{},"Four report jobs have written their workbooks for week 41 of 2026 into one folder; a fifth, open orders, failed and wrote nothing. Each workbook has a ",[57,58,59],"em",{},"Summary"," sheet from which the digest takes its headline. The message is built with the standard library's ",[32,62,63],{},"email"," package; sending it is the same as for any report email.",[20,66,68],{"id":67},"step-1-a-manifest-that-says-what-to-expect","Step 1 — A manifest that says what to expect",[25,70,74],{"className":71,"code":72,"language":73,"meta":30,"style":30},"language-python shiki shiki-themes github-light github-dark-high-contrast","from pathlib import Path\nimport pandas as pd\n\nWEEK = \"2026-W41\"\nfolder = Path(\"reports\") \u002F WEEK\nMANIFEST = [\n    {\"title\": \"Weekly sales\", \"file\": \"weekly_sales.xlsx\", \"owner\": \"Sales ops\",\n     \"headline\": lambda df: f\"Revenue £{df['Revenue'].sum():,.0f} across {len(df)} regions\"},\n    {\"title\": \"Stock below reorder level\", \"file\": \"stock_levels.xlsx\", \"owner\": \"Warehouse\",\n     \"headline\": lambda df: f\"{int(df['Below reorder'].sum())} SKUs below reorder level\"},\n    {\"title\": \"Aged debtors\", \"file\": \"aged_debtors.xlsx\", \"owner\": \"Credit control\",\n     \"headline\": lambda df: f\"£{df['Amount'].sum():,.0f} owed, £{df.loc[df['Bucket'] == '90+', 'Amount'].sum():,.0f} over 90 days\"},\n    {\"title\": \"Open orders\", \"file\": \"open_orders.xlsx\", \"owner\": \"Customer service\",\n     \"headline\": lambda df: f\"{len(df)} open orders\"},\n    {\"title\": \"Web traffic\", \"file\": \"web_traffic.xlsx\", \"owner\": \"Marketing\",\n     \"headline\": lambda df: f\"{int(df.loc[0, 'Value']):,} sessions\"},\n]\n\nitems = []\nfor m in MANIFEST:\n    path = folder \u002F m[\"file\"]\n    item = {**m, \"path\": path, \"exists\": path.exists()}\n    if item[\"exists\"]:\n        try:\n            item[\"text\"] = m[\"headline\"](pd.read_excel(path, sheet_name=\"Summary\"))\n            item[\"size\"] = path.stat().st_size\n        except Exception as e:\n            item[\"exists\"], item[\"text\"] = False, f\"could not be read ({type(e).__name__})\"\n    else:\n        item[\"text\"] = \"not produced this week\"\n    items.append(item)\nfor i in items:\n    print(f\"{i['title']:28} {'OK ' if i['exists'] else 'MISSING'} {i['text']}\")\n","python",[32,75,76,92,106,113,126,150,161,200,258,290,327,359,423,455,483,515,558,564,569,580,598,618,647,661,669,702,717,732,774,782,797,803,816],{"__ignoreMap":30},[35,77,78,82,86,89],{"class":37,"line":38},[35,79,81],{"class":80},"s-kum","from",[35,83,85],{"class":84},"skGVy"," pathlib ",[35,87,88],{"class":80},"import",[35,90,91],{"class":84}," Path\n",[35,93,95,97,100,103],{"class":37,"line":94},2,[35,96,88],{"class":80},[35,98,99],{"class":84}," pandas ",[35,101,102],{"class":80},"as",[35,104,105],{"class":84}," pd\n",[35,107,109],{"class":37,"line":108},3,[35,110,112],{"emptyLinePlaceholder":111},true,"\n",[35,114,116,120,123],{"class":37,"line":115},4,[35,117,119],{"class":118},"sP0c6","WEEK",[35,121,122],{"class":80}," =",[35,124,125],{"class":45}," \"2026-W41\"\n",[35,127,129,132,135,138,141,144,147],{"class":37,"line":128},5,[35,130,131],{"class":84},"folder ",[35,133,134],{"class":80},"=",[35,136,137],{"class":84}," Path(",[35,139,140],{"class":45},"\"reports\"",[35,142,143],{"class":84},") ",[35,145,146],{"class":80},"\u002F",[35,148,149],{"class":118}," WEEK\n",[35,151,153,156,158],{"class":37,"line":152},6,[35,154,155],{"class":118},"MANIFEST",[35,157,122],{"class":80},[35,159,160],{"class":84}," [\n",[35,162,164,167,170,173,176,179,182,184,187,189,192,194,197],{"class":37,"line":163},7,[35,165,166],{"class":84},"    {",[35,168,169],{"class":45},"\"title\"",[35,171,172],{"class":84},": ",[35,174,175],{"class":45},"\"Weekly sales\"",[35,177,178],{"class":84},", ",[35,180,181],{"class":45},"\"file\"",[35,183,172],{"class":84},[35,185,186],{"class":45},"\"weekly_sales.xlsx\"",[35,188,178],{"class":84},[35,190,191],{"class":45},"\"owner\"",[35,193,172],{"class":84},[35,195,196],{"class":45},"\"Sales ops\"",[35,198,199],{"class":84},",\n",[35,201,203,206,208,211,214,217,220,224,227,230,233,236,239,242,244,247,250,252,255],{"class":37,"line":202},8,[35,204,205],{"class":45},"     \"headline\"",[35,207,172],{"class":84},[35,209,210],{"class":80},"lambda",[35,212,213],{"class":84}," df: ",[35,215,216],{"class":80},"f",[35,218,219],{"class":45},"\"Revenue £",[35,221,223],{"class":222},"sSjpA","{",[35,225,226],{"class":84},"df[",[35,228,229],{"class":45},"'Revenue'",[35,231,232],{"class":84},"].sum()",[35,234,235],{"class":80},":,.0f",[35,237,238],{"class":222},"}",[35,240,241],{"class":45}," across ",[35,243,223],{"class":222},[35,245,246],{"class":118},"len",[35,248,249],{"class":84},"(df)",[35,251,238],{"class":222},[35,253,254],{"class":45}," regions\"",[35,256,257],{"class":84},"},\n",[35,259,261,263,265,267,270,272,274,276,279,281,283,285,288],{"class":37,"line":260},9,[35,262,166],{"class":84},[35,264,169],{"class":45},[35,266,172],{"class":84},[35,268,269],{"class":45},"\"Stock below reorder level\"",[35,271,178],{"class":84},[35,273,181],{"class":45},[35,275,172],{"class":84},[35,277,278],{"class":45},"\"stock_levels.xlsx\"",[35,280,178],{"class":84},[35,282,191],{"class":45},[35,284,172],{"class":84},[35,286,287],{"class":45},"\"Warehouse\"",[35,289,199],{"class":84},[35,291,293,295,297,299,301,303,306,308,311,314,317,320,322,325],{"class":37,"line":292},10,[35,294,205],{"class":45},[35,296,172],{"class":84},[35,298,210],{"class":80},[35,300,213],{"class":84},[35,302,216],{"class":80},[35,304,305],{"class":45},"\"",[35,307,223],{"class":222},[35,309,310],{"class":118},"int",[35,312,313],{"class":84},"(df[",[35,315,316],{"class":45},"'Below reorder'",[35,318,319],{"class":84},"].sum())",[35,321,238],{"class":222},[35,323,324],{"class":45}," SKUs below reorder level\"",[35,326,257],{"class":84},[35,328,330,332,334,336,339,341,343,345,348,350,352,354,357],{"class":37,"line":329},11,[35,331,166],{"class":84},[35,333,169],{"class":45},[35,335,172],{"class":84},[35,337,338],{"class":45},"\"Aged debtors\"",[35,340,178],{"class":84},[35,342,181],{"class":45},[35,344,172],{"class":84},[35,346,347],{"class":45},"\"aged_debtors.xlsx\"",[35,349,178],{"class":84},[35,351,191],{"class":45},[35,353,172],{"class":84},[35,355,356],{"class":45},"\"Credit control\"",[35,358,199],{"class":84},[35,360,362,364,366,368,370,372,375,377,379,382,384,386,388,391,393,396,399,402,405,408,410,412,414,416,418,421],{"class":37,"line":361},12,[35,363,205],{"class":45},[35,365,172],{"class":84},[35,367,210],{"class":80},[35,369,213],{"class":84},[35,371,216],{"class":80},[35,373,374],{"class":45},"\"£",[35,376,223],{"class":222},[35,378,226],{"class":84},[35,380,381],{"class":45},"'Amount'",[35,383,232],{"class":84},[35,385,235],{"class":80},[35,387,238],{"class":222},[35,389,390],{"class":45}," owed, £",[35,392,223],{"class":222},[35,394,395],{"class":84},"df.loc[df[",[35,397,398],{"class":45},"'Bucket'",[35,400,401],{"class":84},"] ",[35,403,404],{"class":80},"==",[35,406,407],{"class":45}," '90+'",[35,409,178],{"class":84},[35,411,381],{"class":45},[35,413,232],{"class":84},[35,415,235],{"class":80},[35,417,238],{"class":222},[35,419,420],{"class":45}," over 90 days\"",[35,422,257],{"class":84},[35,424,426,428,430,432,435,437,439,441,444,446,448,450,453],{"class":37,"line":425},13,[35,427,166],{"class":84},[35,429,169],{"class":45},[35,431,172],{"class":84},[35,433,434],{"class":45},"\"Open orders\"",[35,436,178],{"class":84},[35,438,181],{"class":45},[35,440,172],{"class":84},[35,442,443],{"class":45},"\"open_orders.xlsx\"",[35,445,178],{"class":84},[35,447,191],{"class":45},[35,449,172],{"class":84},[35,451,452],{"class":45},"\"Customer service\"",[35,454,199],{"class":84},[35,456,458,460,462,464,466,468,470,472,474,476,478,481],{"class":37,"line":457},14,[35,459,205],{"class":45},[35,461,172],{"class":84},[35,463,210],{"class":80},[35,465,213],{"class":84},[35,467,216],{"class":80},[35,469,305],{"class":45},[35,471,223],{"class":222},[35,473,246],{"class":118},[35,475,249],{"class":84},[35,477,238],{"class":222},[35,479,480],{"class":45}," open orders\"",[35,482,257],{"class":84},[35,484,486,488,490,492,495,497,499,501,504,506,508,510,513],{"class":37,"line":485},15,[35,487,166],{"class":84},[35,489,169],{"class":45},[35,491,172],{"class":84},[35,493,494],{"class":45},"\"Web traffic\"",[35,496,178],{"class":84},[35,498,181],{"class":45},[35,500,172],{"class":84},[35,502,503],{"class":45},"\"web_traffic.xlsx\"",[35,505,178],{"class":84},[35,507,191],{"class":45},[35,509,172],{"class":84},[35,511,512],{"class":45},"\"Marketing\"",[35,514,199],{"class":84},[35,516,518,520,522,524,526,528,530,532,534,537,540,542,545,548,551,553,556],{"class":37,"line":517},16,[35,519,205],{"class":45},[35,521,172],{"class":84},[35,523,210],{"class":80},[35,525,213],{"class":84},[35,527,216],{"class":80},[35,529,305],{"class":45},[35,531,223],{"class":222},[35,533,310],{"class":118},[35,535,536],{"class":84},"(df.loc[",[35,538,539],{"class":118},"0",[35,541,178],{"class":84},[35,543,544],{"class":45},"'Value'",[35,546,547],{"class":84},"])",[35,549,550],{"class":80},":,",[35,552,238],{"class":222},[35,554,555],{"class":45}," sessions\"",[35,557,257],{"class":84},[35,559,561],{"class":37,"line":560},17,[35,562,563],{"class":84},"]\n",[35,565,567],{"class":37,"line":566},18,[35,568,112],{"emptyLinePlaceholder":111},[35,570,572,575,577],{"class":37,"line":571},19,[35,573,574],{"class":84},"items ",[35,576,134],{"class":80},[35,578,579],{"class":84}," []\n",[35,581,583,586,589,592,595],{"class":37,"line":582},20,[35,584,585],{"class":80},"for",[35,587,588],{"class":84}," m ",[35,590,591],{"class":80},"in",[35,593,594],{"class":118}," MANIFEST",[35,596,597],{"class":84},":\n",[35,599,601,604,606,609,611,614,616],{"class":37,"line":600},21,[35,602,603],{"class":84},"    path ",[35,605,134],{"class":80},[35,607,608],{"class":84}," folder ",[35,610,146],{"class":80},[35,612,613],{"class":84}," m[",[35,615,181],{"class":45},[35,617,563],{"class":84},[35,619,621,624,626,629,632,635,638,641,644],{"class":37,"line":620},22,[35,622,623],{"class":84},"    item ",[35,625,134],{"class":80},[35,627,628],{"class":84}," {",[35,630,631],{"class":80},"**",[35,633,634],{"class":84},"m, ",[35,636,637],{"class":45},"\"path\"",[35,639,640],{"class":84},": path, ",[35,642,643],{"class":45},"\"exists\"",[35,645,646],{"class":84},": path.exists()}\n",[35,648,650,653,656,658],{"class":37,"line":649},23,[35,651,652],{"class":80},"    if",[35,654,655],{"class":84}," item[",[35,657,643],{"class":45},[35,659,660],{"class":84},"]:\n",[35,662,664,667],{"class":37,"line":663},24,[35,665,666],{"class":80},"        try",[35,668,597],{"class":84},[35,670,672,675,678,680,682,684,687,690,694,696,699],{"class":37,"line":671},25,[35,673,674],{"class":84},"            item[",[35,676,677],{"class":45},"\"text\"",[35,679,401],{"class":84},[35,681,134],{"class":80},[35,683,613],{"class":84},[35,685,686],{"class":45},"\"headline\"",[35,688,689],{"class":84},"](pd.read_excel(path, ",[35,691,693],{"class":692},"sa561","sheet_name",[35,695,134],{"class":80},[35,697,698],{"class":45},"\"Summary\"",[35,700,701],{"class":84},"))\n",[35,703,705,707,710,712,714],{"class":37,"line":704},26,[35,706,674],{"class":84},[35,708,709],{"class":45},"\"size\"",[35,711,401],{"class":84},[35,713,134],{"class":80},[35,715,716],{"class":84}," path.stat().st_size\n",[35,718,720,723,726,729],{"class":37,"line":719},27,[35,721,722],{"class":80},"        except",[35,724,725],{"class":118}," Exception",[35,727,728],{"class":80}," as",[35,730,731],{"class":84}," e:\n",[35,733,735,737,739,742,744,746,748,751,753,755,758,760,763,766,769,771],{"class":37,"line":734},28,[35,736,674],{"class":84},[35,738,643],{"class":45},[35,740,741],{"class":84},"], item[",[35,743,677],{"class":45},[35,745,401],{"class":84},[35,747,134],{"class":80},[35,749,750],{"class":118}," False",[35,752,178],{"class":84},[35,754,216],{"class":80},[35,756,757],{"class":45},"\"could not be read (",[35,759,223],{"class":222},[35,761,762],{"class":118},"type",[35,764,765],{"class":84},"(e).",[35,767,768],{"class":118},"__name__",[35,770,238],{"class":222},[35,772,773],{"class":45},")\"\n",[35,775,777,780],{"class":37,"line":776},29,[35,778,779],{"class":80},"    else",[35,781,597],{"class":84},[35,783,785,788,790,792,794],{"class":37,"line":784},30,[35,786,787],{"class":84},"        item[",[35,789,677],{"class":45},[35,791,401],{"class":84},[35,793,134],{"class":80},[35,795,796],{"class":45}," \"not produced this week\"\n",[35,798,800],{"class":37,"line":799},31,[35,801,802],{"class":84},"    items.append(item)\n",[35,804,806,808,811,813],{"class":37,"line":805},32,[35,807,585],{"class":80},[35,809,810],{"class":84}," i ",[35,812,591],{"class":80},[35,814,815],{"class":84}," items:\n",[35,817,819,822,825,827,829,831,834,837,840,843,845,847,850,853,856,859,861,864,867,869,871,873,876,878,880,882],{"class":37,"line":818},33,[35,820,821],{"class":118},"    print",[35,823,824],{"class":84},"(",[35,826,216],{"class":80},[35,828,305],{"class":45},[35,830,223],{"class":222},[35,832,833],{"class":84},"i[",[35,835,836],{"class":45},"'title'",[35,838,839],{"class":84},"]",[35,841,842],{"class":80},":28",[35,844,238],{"class":222},[35,846,628],{"class":222},[35,848,849],{"class":45},"'OK '",[35,851,852],{"class":80}," if",[35,854,855],{"class":84}," i[",[35,857,858],{"class":45},"'exists'",[35,860,401],{"class":84},[35,862,863],{"class":80},"else",[35,865,866],{"class":45}," 'MISSING'",[35,868,238],{"class":222},[35,870,628],{"class":222},[35,872,833],{"class":84},[35,874,875],{"class":45},"'text'",[35,877,839],{"class":84},[35,879,238],{"class":222},[35,881,305],{"class":45},[35,883,884],{"class":84},")\n",[10,886,887,888,891,892,895],{},"The manifest is the list of reports the digest ",[57,889,890],{},"expects",", not whatever happens to be in the folder. Each entry names the report, its file, who owns it and how to turn its summary sheet into one headline sentence. Driving the digest from the manifest is what lets it notice absences: the open-orders report was not written this week, and the digest says ",[57,893,894],{},"not produced this week"," instead of silently leaving it out. A report that exists but cannot be read — a corrupt file, a renamed sheet — is treated the same way, with the reason. The headline functions are deliberately small; they read the figure each report's owner considers most important, and anything more belongs in the report itself.",[897,898,906,907,906,911,906,915,906,922,906,932,906,939,906,944,906,948,906,954,906,959,906,963,906,968,906,971,906,974,906,978,906,981,906,986,906,991,906,994,906,997,906,1001,906,1004,906,1009,906,1014,906,1017,906,1020,906,1024,906,1027,906,1030,906,1034,906,1037],"svg",{"viewBox":899,"role":900,"ariaLabelledBy":901,"xmlns":904,"style":905},"4 0 752 108","img",[902,903],"digest-flow-t","digest-flow-d","http:\u002F\u002Fwww.w3.org\u002F2000\u002Fsvg","width:100%;max-width:752px;height:auto;display:block;margin:1.5rem auto;font-family:Inter,ui-sans-serif,system-ui,sans-serif","\n  ",[908,909,910],"title",{"id":902},"Building the weekly digest",[912,913,914],"desc",{"id":903},"The manifest lists the expected reports. Each is looked for in the week's folder; found reports have a headline read from their summary sheet, missing or unreadable ones are marked. Small files are attached, large ones linked, and one HTML email with a text alternative is written for preview.",[916,917],"rect",{"x":918,"y":539,"width":919,"height":920,"fill":921},"4","752","108","#ffffff",[916,923],{"x":924,"y":925,"width":926,"height":927,"rx":928,"fill":929,"stroke":930,"style":931},"20.0","16.0","115.2","76.5","12","#e7ebef","var(--line,#cdd5e6)","stroke-width:2px",[933,934,938],"text",{"x":935,"y":936,"style":937},"77.6","41.5","font-size:13.5px;font-weight:700;fill:var(--text,#172033);text-anchor:middle","Manifest",[933,940,943],{"x":935,"y":941,"style":942},"61.0","font-size:11.5px;font-weight:400;fill:var(--text,#172033);text-anchor:middle","expected",[933,945,947],{"x":935,"y":946,"style":942},"78.5","reports",[37,949],{"x1":950,"y1":951,"x2":952,"y2":951,"stroke":953,"style":931},"140.2","54.2","162.2","var(--brand,#5b5cf0)",[955,956],"polygon",{"points":957,"fill":958},"166.2,54.2 157.2,59.2 157.2,49.2","#5b5cf0",[916,960],{"x":961,"y":925,"width":926,"height":927,"rx":928,"fill":962,"stroke":953,"style":931},"171.2","#f0f4ff",[933,964,967],{"x":965,"y":936,"style":966},"228.8","font-size:13.5px;font-weight:700;fill:var(--brand-strong,#4338ca);text-anchor:middle","Find each file",[933,969,970],{"x":965,"y":941,"style":942},"found or",[933,972,973],{"x":965,"y":946,"style":942},"missing",[37,975],{"x1":976,"y1":951,"x2":977,"y2":951,"stroke":953,"style":931},"291.4","313.4",[955,979],{"points":980,"fill":958},"317.4,54.2 308.4,59.2 308.4,49.2",[916,982],{"x":983,"y":925,"width":926,"height":927,"rx":928,"fill":984,"stroke":985,"style":931},"322.4","#fdefd8","var(--gold,#b4740a)",[933,987,990],{"x":988,"y":936,"style":989},"380.0","font-size:13.5px;font-weight:700;fill:var(--gold-ink,#7a4e06);text-anchor:middle","Headline",[933,992,993],{"x":988,"y":941,"style":942},"from the",[933,995,996],{"x":988,"y":946,"style":942},"Summary sheet",[37,998],{"x1":999,"y1":951,"x2":1000,"y2":951,"stroke":953,"style":931},"442.6","464.6",[955,1002],{"points":1003,"fill":958},"468.6,54.2 459.6,59.2 459.6,49.2",[916,1005],{"x":1006,"y":925,"width":926,"height":927,"rx":928,"fill":1007,"stroke":1008,"style":931},"473.6","#d9f4f1","var(--teal,#0f9488)",[933,1010,1013],{"x":1011,"y":936,"style":1012},"531.2","font-size:13.5px;font-weight:700;fill:var(--teal-ink,#0b6157);text-anchor:middle","Attach or link",[933,1015,1016],{"x":1011,"y":941,"style":942},"under the size",[933,1018,1019],{"x":1011,"y":946,"style":942},"limit",[37,1021],{"x1":1022,"y1":951,"x2":1023,"y2":951,"stroke":953,"style":931},"593.8","615.8",[955,1025],{"points":1026,"fill":958},"619.8,54.2 610.8,59.2 610.8,49.2",[916,1028],{"x":1029,"y":925,"width":926,"height":927,"rx":928,"fill":962,"stroke":953,"style":931},"624.8",[933,1031,1033],{"x":1032,"y":936,"style":966},"682.4","One email",[933,1035,1036],{"x":1032,"y":941,"style":942},"HTML + text,",[933,1038,1039],{"x":1032,"y":946,"style":942},"preview",[20,1041,1043],{"id":1042},"step-2-attach-what-fits-link-the-rest","Step 2 — Attach what fits, link the rest",[25,1045,1047],{"className":71,"code":1046,"language":73,"meta":30,"style":30},"LIMIT = 3 * 1024 * 1024                              # total attachment budget for the email\nSHARE = \"https:\u002F\u002Fintranet.example.com\u002Freports\"       # where every report is also published\nbudget = LIMIT\nfor i in sorted((i for i in items if i[\"exists\"]), key=lambda i: i[\"size\"]):\n    if i[\"size\"] \u003C= budget:\n        i[\"delivery\"], budget = \"attached\", budget - i[\"size\"]\n    else:\n        i[\"delivery\"] = \"link\"\n    i[\"url\"] = f\"{SHARE}\u002F{WEEK}\u002F{i['file']}\"\nprint({i[\"title\"]: (i.get(\"delivery\"), round(i.get(\"size\", 0) \u002F 1024)) for i in items})\n",[32,1048,1049,1073,1086,1096,1143,1159,1187,1193,1206,1253],{"__ignoreMap":30},[35,1050,1051,1054,1056,1059,1062,1065,1067,1069],{"class":37,"line":38},[35,1052,1053],{"class":118},"LIMIT",[35,1055,122],{"class":80},[35,1057,1058],{"class":118}," 3",[35,1060,1061],{"class":80}," *",[35,1063,1064],{"class":118}," 1024",[35,1066,1061],{"class":80},[35,1068,1064],{"class":118},[35,1070,1072],{"class":1071},"s-wDw","                              # total attachment budget for the email\n",[35,1074,1075,1078,1080,1083],{"class":37,"line":94},[35,1076,1077],{"class":118},"SHARE",[35,1079,122],{"class":80},[35,1081,1082],{"class":45}," \"https:\u002F\u002Fintranet.example.com\u002Freports\"",[35,1084,1085],{"class":1071},"       # where every report is also published\n",[35,1087,1088,1091,1093],{"class":37,"line":108},[35,1089,1090],{"class":84},"budget ",[35,1092,134],{"class":80},[35,1094,1095],{"class":118}," LIMIT\n",[35,1097,1098,1100,1102,1104,1107,1110,1112,1114,1116,1119,1122,1124,1126,1129,1132,1135,1138,1140],{"class":37,"line":115},[35,1099,585],{"class":80},[35,1101,810],{"class":84},[35,1103,591],{"class":80},[35,1105,1106],{"class":118}," sorted",[35,1108,1109],{"class":84},"((i ",[35,1111,585],{"class":80},[35,1113,810],{"class":84},[35,1115,591],{"class":80},[35,1117,1118],{"class":84}," items ",[35,1120,1121],{"class":80},"if",[35,1123,855],{"class":84},[35,1125,643],{"class":45},[35,1127,1128],{"class":84},"]), ",[35,1130,1131],{"class":692},"key",[35,1133,1134],{"class":80},"=lambda",[35,1136,1137],{"class":84}," i: i[",[35,1139,709],{"class":45},[35,1141,1142],{"class":84},"]):\n",[35,1144,1145,1147,1149,1151,1153,1156],{"class":37,"line":128},[35,1146,652],{"class":80},[35,1148,855],{"class":84},[35,1150,709],{"class":45},[35,1152,401],{"class":84},[35,1154,1155],{"class":80},"\u003C=",[35,1157,1158],{"class":84}," budget:\n",[35,1160,1161,1164,1167,1170,1172,1175,1178,1181,1183,1185],{"class":37,"line":152},[35,1162,1163],{"class":84},"        i[",[35,1165,1166],{"class":45},"\"delivery\"",[35,1168,1169],{"class":84},"], budget ",[35,1171,134],{"class":80},[35,1173,1174],{"class":45}," \"attached\"",[35,1176,1177],{"class":84},", budget ",[35,1179,1180],{"class":80},"-",[35,1182,855],{"class":84},[35,1184,709],{"class":45},[35,1186,563],{"class":84},[35,1188,1189,1191],{"class":37,"line":163},[35,1190,779],{"class":80},[35,1192,597],{"class":84},[35,1194,1195,1197,1199,1201,1203],{"class":37,"line":202},[35,1196,1163],{"class":84},[35,1198,1166],{"class":45},[35,1200,401],{"class":84},[35,1202,134],{"class":80},[35,1204,1205],{"class":45}," \"link\"\n",[35,1207,1208,1211,1214,1216,1218,1221,1223,1225,1227,1229,1231,1233,1235,1237,1239,1241,1243,1246,1248,1250],{"class":37,"line":260},[35,1209,1210],{"class":84},"    i[",[35,1212,1213],{"class":45},"\"url\"",[35,1215,401],{"class":84},[35,1217,134],{"class":80},[35,1219,1220],{"class":80}," f",[35,1222,305],{"class":45},[35,1224,223],{"class":222},[35,1226,1077],{"class":118},[35,1228,238],{"class":222},[35,1230,146],{"class":45},[35,1232,223],{"class":222},[35,1234,119],{"class":118},[35,1236,238],{"class":222},[35,1238,146],{"class":45},[35,1240,223],{"class":222},[35,1242,833],{"class":84},[35,1244,1245],{"class":45},"'file'",[35,1247,839],{"class":84},[35,1249,238],{"class":222},[35,1251,1252],{"class":45},"\"\n",[35,1254,1255,1258,1261,1263,1266,1268,1271,1274,1277,1279,1281,1283,1285,1287,1289,1292,1294,1296,1298],{"class":37,"line":292},[35,1256,1257],{"class":118},"print",[35,1259,1260],{"class":84},"({i[",[35,1262,169],{"class":45},[35,1264,1265],{"class":84},"]: (i.get(",[35,1267,1166],{"class":45},[35,1269,1270],{"class":84},"), ",[35,1272,1273],{"class":118},"round",[35,1275,1276],{"class":84},"(i.get(",[35,1278,709],{"class":45},[35,1280,178],{"class":84},[35,1282,539],{"class":118},[35,1284,143],{"class":84},[35,1286,146],{"class":80},[35,1288,1064],{"class":118},[35,1290,1291],{"class":84},")) ",[35,1293,585],{"class":80},[35,1295,810],{"class":84},[35,1297,591],{"class":80},[35,1299,1300],{"class":84}," items})\n",[10,1302,1303,1304,18],{},"Mail servers reject or quietly drop messages above a size limit, often between 10 and 25 MB, and a digest that bundles every workbook can exceed it easily. The attachments are therefore allocated from a fixed budget, smallest first, so the most reports fit; anything that does not fit is linked instead, from the location where every report is published anyway. Here the three small workbooks, about 5 KB each, are attached and the web traffic workbook, 4.7 MB because of its raw data sheet, gets a link. Attachments are encoded in base64, which makes them about a third larger in the message than on disk, so the budget is set well below the real limit: in a test with the web traffic workbook attached, the 4.7 MB file produced a 6.4 MB email. For the general approach, see ",[14,1305,1307],{"href":1306},"\u002Fautomating-reporting-workflows\u002Femailing-excel-reports-with-smtplib\u002Femail-a-download-link-instead-of-an-excel-attachment\u002F","Email a Download Link Instead of an Excel Attachment",[897,1309,906,1314,906,1316,906,1319,906,1322,906,1327,906,1333,906,1339,906,1344,906,1348,906,1352,906,1356,906,1359,906,1364,906,1368,906,1371,906,1374,906,1377],{"viewBox":1310,"role":900,"ariaLabelledBy":1311,"xmlns":904,"style":905},"4 0 752 199",[1312,1313],"digest-attach-t","digest-attach-d",[908,1315,1013],{"id":1312},[912,1317,1318],{"id":1313},"Small workbooks are attached so they can be opened from the email directly, offline or on a phone. Large workbooks are linked to their published location, which keeps the email small and avoids the server's size limit, at the cost of needing network access.",[916,1320],{"x":918,"y":539,"width":919,"height":1321,"fill":921},"199",[916,1323],{"x":924,"y":925,"width":1324,"height":1325,"rx":1326,"fill":1007,"stroke":1008,"style":931},"351.0","167.0","14",[933,1328,1332],{"x":1329,"y":1330,"style":1331},"195.5","44.0","font-size:14px;font-weight:700;fill:var(--teal-ink,#0b6157);text-anchor:middle","Attach",[37,1334],{"x1":1335,"y1":1336,"x2":1337,"y2":1336,"stroke":1008,"style":1338},"36.0","57.0","355.0","stroke-width:1px",[933,1340,1343],{"x":1329,"y":1341,"style":1342},"77.0","font-size:12px;font-weight:400;fill:var(--text,#172033);text-anchor:middle","small workbooks",[933,1345,1347],{"x":1329,"y":1346,"style":1342},"103.0","opens straight from the email",[933,1349,1351],{"x":1329,"y":1350,"style":1342},"129.0","works offline",[933,1353,1355],{"x":1329,"y":1354,"style":1342},"155.0","counts against the limit",[916,1357],{"x":1358,"y":925,"width":1324,"height":1325,"rx":1326,"fill":962,"stroke":953,"style":931},"389.0",[933,1360,1363],{"x":1361,"y":1330,"style":1362},"564.5","font-size:14px;font-weight:700;fill:var(--brand-strong,#4338ca);text-anchor:middle","Link",[37,1365],{"x1":1366,"y1":1336,"x2":1367,"y2":1336,"stroke":953,"style":1338},"405.0","724.0",[933,1369,1370],{"x":1361,"y":1341,"style":1342},"large workbooks",[933,1372,1373],{"x":1361,"y":1346,"style":1342},"keeps the email small",[933,1375,1376],{"x":1361,"y":1350,"style":1342},"one copy, always current",[933,1378,1379],{"x":1361,"y":1354,"style":1342},"needs access to the share",[20,1381,1383],{"id":1382},"step-3-one-email-html-and-plain-text","Step 3 — One email, HTML and plain text",[25,1385,1387],{"className":71,"code":1386,"language":73,"meta":30,"style":30},"from email.message import EmailMessage\nfrom html import escape\n\nrows_html = []\nfor i in items:\n    status = (\"✓\" if i[\"exists\"] else \"⚠\")\n    detail = (f'attached' if i.get(\"delivery\") == \"attached\" else\n              f'\u003Ca href=\"{escape(i[\"url\"])}\">open\u003C\u002Fa>' if i[\"exists\"] else f'ask {escape(i[\"owner\"])}')\n    colour = \"#222\" if i[\"exists\"] else \"#C62828\"\n    rows_html.append(f'\u003Ctr>\u003Ctd style=\"padding:6px 10px\">{status}\u003C\u002Ftd>\u003Ctd style=\"padding:6px 10px\">\u003Cb>{escape(i[\"title\"])}\u003C\u002Fb>\u003C\u002Ftd>'\n                     f'\u003Ctd style=\"padding:6px 10px;color:{colour}\">{escape(i[\"text\"])}\u003C\u002Ftd>\u003Ctd style=\"padding:6px 10px\">{detail}\u003C\u002Ftd>\u003C\u002Ftr>')\nmissing = [i[\"title\"] for i in items if not i[\"exists\"]]\nhtml = (f'\u003Cdiv style=\"font-family:Arial,sans-serif;font-size:14px\">'\n        f'\u003Cp>Weekly reports for \u003Cb>{WEEK}\u003C\u002Fb>: {len(items) - len(missing)} of {len(items)} produced.\u003C\u002Fp>'\n        f'\u003Ctable style=\"border-collapse:collapse\">{\"\".join(rows_html)}\u003C\u002Ftable>'\n        f'\u003Cp style=\"color:#888;font-size:12px\">All reports are also at {escape(SHARE)}\u002F{WEEK}\u002F\u003C\u002Fp>\u003C\u002Fdiv>')\ntext = \"\\n\".join([f\"Weekly reports for {WEEK}: {len(items) - len(missing)} of {len(items)} produced.\", \"\"] +\n                 [f\"- {i['title']}: {i['text']}\" + (f\" ({i['url']})\" if i.get('delivery') == 'link' else \"\") for i in items])\n\nmsg = EmailMessage()\nmsg[\"Subject\"] = f\"Weekly reports {WEEK}\" + (f\" — {len(missing)} missing\" if missing else \"\")\nmsg[\"From\"], msg[\"To\"] = \"reports@example.com\", \"management@example.com\"\nmsg.set_content(text)\nmsg.add_alternative(html, subtype=\"html\")\nfor i in items:\n    if i.get(\"delivery\") == \"attached\":\n        msg.add_attachment(i[\"path\"].read_bytes(), maintype=\"application\",\n                           subtype=\"vnd.openxmlformats-officedocument.spreadsheetml.sheet\", filename=i[\"file\"])\nPath(\"digest_preview.eml\").write_bytes(bytes(msg))\nprint(msg[\"Subject\"], \"|\", round(len(bytes(msg)) \u002F 1024), \"KB\")\nprint(text)\n",[32,1388,1389,1401,1413,1417,1426,1436,1464,1494,1546,1569,1602,1645,1679,1693,1742,1762,1794,1861,1950,1954,1964,2020,2045,2050,2065,2075,2091,2111,2135,2152,2193],{"__ignoreMap":30},[35,1390,1391,1393,1396,1398],{"class":37,"line":38},[35,1392,81],{"class":80},[35,1394,1395],{"class":84}," email.message ",[35,1397,88],{"class":80},[35,1399,1400],{"class":84}," EmailMessage\n",[35,1402,1403,1405,1408,1410],{"class":37,"line":94},[35,1404,81],{"class":80},[35,1406,1407],{"class":84}," html ",[35,1409,88],{"class":80},[35,1411,1412],{"class":84}," escape\n",[35,1414,1415],{"class":37,"line":108},[35,1416,112],{"emptyLinePlaceholder":111},[35,1418,1419,1422,1424],{"class":37,"line":115},[35,1420,1421],{"class":84},"rows_html ",[35,1423,134],{"class":80},[35,1425,579],{"class":84},[35,1427,1428,1430,1432,1434],{"class":37,"line":128},[35,1429,585],{"class":80},[35,1431,810],{"class":84},[35,1433,591],{"class":80},[35,1435,815],{"class":84},[35,1437,1438,1441,1443,1446,1449,1451,1453,1455,1457,1459,1462],{"class":37,"line":152},[35,1439,1440],{"class":84},"    status ",[35,1442,134],{"class":80},[35,1444,1445],{"class":84}," (",[35,1447,1448],{"class":45},"\"✓\"",[35,1450,852],{"class":80},[35,1452,855],{"class":84},[35,1454,643],{"class":45},[35,1456,401],{"class":84},[35,1458,863],{"class":80},[35,1460,1461],{"class":45}," \"⚠\"",[35,1463,884],{"class":84},[35,1465,1466,1469,1471,1473,1475,1478,1480,1483,1485,1487,1489,1491],{"class":37,"line":163},[35,1467,1468],{"class":84},"    detail ",[35,1470,134],{"class":80},[35,1472,1445],{"class":84},[35,1474,216],{"class":80},[35,1476,1477],{"class":45},"'attached'",[35,1479,852],{"class":80},[35,1481,1482],{"class":84}," i.get(",[35,1484,1166],{"class":45},[35,1486,143],{"class":84},[35,1488,404],{"class":80},[35,1490,1174],{"class":45},[35,1492,1493],{"class":80}," else\n",[35,1495,1496,1499,1502,1504,1507,1509,1511,1513,1516,1518,1520,1522,1524,1526,1528,1531,1533,1535,1537,1539,1541,1544],{"class":37,"line":202},[35,1497,1498],{"class":80},"              f",[35,1500,1501],{"class":45},"'\u003Ca href=\"",[35,1503,223],{"class":222},[35,1505,1506],{"class":84},"escape(i[",[35,1508,1213],{"class":45},[35,1510,547],{"class":84},[35,1512,238],{"class":222},[35,1514,1515],{"class":45},"\">open\u003C\u002Fa>'",[35,1517,852],{"class":80},[35,1519,855],{"class":84},[35,1521,643],{"class":45},[35,1523,401],{"class":84},[35,1525,863],{"class":80},[35,1527,1220],{"class":80},[35,1529,1530],{"class":45},"'ask ",[35,1532,223],{"class":222},[35,1534,1506],{"class":84},[35,1536,191],{"class":45},[35,1538,547],{"class":84},[35,1540,238],{"class":222},[35,1542,1543],{"class":45},"'",[35,1545,884],{"class":84},[35,1547,1548,1551,1553,1556,1558,1560,1562,1564,1566],{"class":37,"line":260},[35,1549,1550],{"class":84},"    colour ",[35,1552,134],{"class":80},[35,1554,1555],{"class":45}," \"#222\"",[35,1557,852],{"class":80},[35,1559,855],{"class":84},[35,1561,643],{"class":45},[35,1563,401],{"class":84},[35,1565,863],{"class":80},[35,1567,1568],{"class":45}," \"#C62828\"\n",[35,1570,1571,1574,1576,1579,1581,1584,1586,1589,1591,1593,1595,1597,1599],{"class":37,"line":292},[35,1572,1573],{"class":84},"    rows_html.append(",[35,1575,216],{"class":80},[35,1577,1578],{"class":45},"'\u003Ctr>\u003Ctd style=\"padding:6px 10px\">",[35,1580,223],{"class":222},[35,1582,1583],{"class":84},"status",[35,1585,238],{"class":222},[35,1587,1588],{"class":45},"\u003C\u002Ftd>\u003Ctd style=\"padding:6px 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