【发布时间】：2016-12-06 15:48:15
【问题描述】：
我使用 BeautifulSoup 从 HTML 表中提取特定数据，现在我需要检查该数据是否出现在表中的其他位置，如果是，则还要捕获该数据。
更具体地说，我的表格的最后一列只包含日期。最近的日期位于列的顶部，并且该日期有时会出现在较低的行中。我正在尝试编写一个 if 循环来查看：如果该日期出现在表中的其他位置，则捕获它及其行中的相应数据。
这是我的相关代码：
`rows = table.findAll("tr")[0:20]
more_data = {'last_column' : []}
for row in rows [1:2]:
cols = row.findAll("td")[0:20]
more_data['last_column'].extend(cols[4].stripped_strings)
var1 = more_data['last_column'] #stores date 5/20 in variable
str1 = ''.join(var1) #turns 5/20 from list to string`
`data_data = {'entire_last_column' : [] }
for row in rows [0:20]:
cols = row.findAll("td")[0:20]
data_data['entire_last_column'].extend(cols[4].stripped_strings)
var2 = data_data['entire_last_column'] #stores entire last column of dates in variable `
`#var2.count(str1)
if any(var1 in s for s in var2):
print(s)`
最后几行代码是我尝试搜索和捕获未来出现的“5/20”。但即使是那些失败。
我需要验证表中是否再次出现“5/20”，如果出现，那么我需要该行中的所有数据，如果它没有结束。
这是 HTML 代码：
`<html>
<head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>FW: NEFS 2 Available Quota 5/21</title>
<link rel="important stylesheet" href="">
<style>div.headerdisplayname {font-weight:bold;}</style></head>
<body>
<table border=0 cellspacing=0 cellpadding=0 width="100%" class="header-part1"><tr><td><b>Subject: </b>FW: NEFS 2 Available Quota 5/21</td></tr><tr><td><b>From: </b>Claire Fitz-Gerald <claire@capecodfishermen.org></td></tr><tr><td><b>Date: </b>5/21/2014 10:08 AM</td></tr></table><br>
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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Please see the below quota listings.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Thanks,<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Franklin Gothic Book","sans-serif";color:#1F497D'>Claire Fitz-Gerald<o:p></o:p></span></p><p class=MsoNormal><i><span style='font-size:10.0pt;font-family:"Franklin Gothic Book","sans-serif";color:#1F497D'><o:p> </o:p></span></i></p><p class=MsoNormal><b><span style='font-family:"Franklin Gothic Demi","sans-serif";color:#002776'>Cape Cod Commercial Fishermen's Alliance<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-family:"Franklin Gothic Book","sans-serif";color:#DE3500'>~ Small Boats. Big Ideas. ~</span></b><b><span style='color:#DE3500'><o:p></o:p></span></b></p></div><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> David Leveille [mailto:nefs02@gmail.com] <br><b>Sent:</b> Wednesday, May 21, 2014 8:50 AM<br><b>To:</b> David Leveille<br><b>Subject:</b> NEFS 2 Available Quota 5/21<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial","sans-serif";color:#1F487E'>AVAILABLE QUOTA FY 2014</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 width="71%" style='width:71.28%'><tr><td width=220 style='width:164.95pt;border:none;border-bottom:solid windowtext 1.0pt;background:#8BCDFF;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='line-height:15.0pt'><b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black'>ID <o:p></o:p></span></b></p></td><td width=161 style='width:120.75pt;border:none;border-bottom:solid windowtext 1.0pt;background:#8BCDFF;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='mso-line-height-alt:15.0pt'><b><span style='font-size:18.0pt;font-family:"Arial","sans-serif";color:black'>Available Quota <o:p></o:p></span></b></p></td><td width=189 style='width:141.75pt;border:none;border-bottom:solid windowtext 1.0pt;background:#8BCDFF;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='mso-line-height-alt:15.0pt'><b><span style='font-size:18.0pt;font-family:"Arial","sans-serif";color:black'>Live Weight Pounds <o:p></o:p></span></b></p></td><td width=126 style='width:94.55pt;border:none;border-bottom:solid windowtext 1.0pt;background:#8BCDFF;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='mso-line-height-alt:15.0pt'><b><span style='font-size:18.0pt;font-family:"Arial","sans-serif";color:black'>Price <o:p></o:p></span></b></p></td><td width=168 style='width:125.95pt;border:none;border-bottom:solid windowtext 1.0pt;background:#8BCDFF;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='mso-line-height-alt:15.0pt'><b><span style='font-size:18.0pt;font-family:"Arial","sans-serif";color:black'>Date Posted <o:p></o:p></span></b></p></td></tr><tr><td width=220 style='width:164.95pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>1724<o:p></o:p></span></p></td><td width=161 style='width:120.75pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>GOM COD<br>GOM HADD<br>GOM BB<br>GREYSOLE<br>DABS<br>GOM YT<o:p></o:p></span></p></td><td width=189 style='width:141.75pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>2328<br>445<br>3007<br>850<br>3101<br>1995<o:p></o:p></span></p></td><td width=126 style='width:94.55pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>Package<o:p></o:p></span></p><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'><o:p> </o:p></span></p><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>$9,000<o:p></o:p></span></p></td><td width=168 style='width:125.95pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>5/20<o:p></o:p></span></p></td></tr><tr><td width=220 style='width:164.95pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>1578<o:p></o:p></span></p></td><td width=161 style='width:120.75pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>GBE COD<br>GBW COD<br>GB BB<br>GB YT<br>SNE BB<br>SNE YT<br>GOM BB<br>Whake<br>POLL<br>RED<o:p></o:p></span></p></td><td width=189 style='width:141.75pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>538<br>5894<br>1755<br>243<br>490<br>153<br>3965<br>2727<br>9227<br>15060<o:p></o:p></span></p></td><td width=126 style='width:94.55pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>$1.00<br>$0.40<br>$0.20<br>$1.00<br>$0.45<br>$0.50<br>$0.15<br>$0.20<br>$0.01<br>$0.01<o:p></o:p></span></p></td><td width=168 style='width:125.95pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>5/20<o:p></o:p></span></p></td></tr><tr><td width=220 style='width:164.95pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>310<o:p></o:p></span></p></td><td width=161 style='width:120.75pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>GBE COD<br>GBW COD<br>DABS<br>WHAKE<br>POLL<br>RED<br>SNE BB<br>GOM BB<o:p></o:p></span></p></td><td width=189 style='width:141.75pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>825<br>9033<br>1241<br>3120<br>65234<br>76610<br>1688<br>1195<br>2121<br>7285<o:p></o:p></span></p></td><td width=126 style='width:94.55pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>Package<o:p></o:p></span></p><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'><o:p> </o:p></span></p><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>$15,000<o:p></o:p></span></p></td><td width=168 style='width:125.95pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>5/20<o:p></o:p></span></p></td></tr><tr style='height:23.25pt'><td width=220 style='width:164.95pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt;height:23.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>347<o:p></o:p></span></p></td><td width=161 style='width:120.75pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt;height:23.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>SNE BB<o:p></o:p></span></p></td><td width=189 style='width:141.75pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt;height:23.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>8,000<o:p></o:p></span></p></td><td width=126 style='width:94.55pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt;height:23.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>$0.50<o:p></o:p></span></p></td><td width=168 style='width:125.95pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt;height:23.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>5/7<o:p></o:p></span></p></td></tr><tr><td width=220 style='width:164.95pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>1878A<o:p></o:p></span></p></td><td width=161 style='width:120.75pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>GOM COD<br>GOM HADD<br>SNE BB<br>GOM BB<br>GB BB<br>GREYSOLE<br>GOM YT<br>SNE YT<br>POLL<o:p></o:p></span></p></td><td width=189 style='width:141.75pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>6188<br>635<br>3916<br>7873<br>6762<br>3358<br>9776<br>271<br>186550<o:p></o:p></span></p></td><td width=126 style='width:94.55pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>$1.95<br>$1.35<br>$0.50<br>$0.50<br>$0.20<br>$1.40<br>$1.20<br>$0.50<br>$0.01<o:p></o:p></span></p></td><td width=168 style='width:125.95pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>5/12<o:p></o:p></span></p></td></tr><tr><td width=220 style='width:164.95pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>1878B<o:p></o:p></span></p></td><td width=161 style='width:120.75pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>GBE COD<br>GBW COD<br>GB YT<o:p></o:p></span></p></td><td width=189 style='width:141.75pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>1113<br>12186<br>850<o:p></o:p></span></p></td><td width=126 style='width:94.55pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>Package<br>$10,000<o:p></o:p></span></p></td><td width=168 style='width:125.95pt;border:solid windowtext 1.0pt;background:white;padding:2.25pt 2.25pt 2.25pt 2.25pt'><p class=MsoNormal style='line-height:15.0pt'><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>5/12<o:p></o:p></span></p></td></tr></table><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>David Leveille<o:p></o:p></p><p class=MsoNormal>II Northeast Fishery Sector Inc.<o:p></o:p></p><p class=MsoNormal>10 Witham Street<o:p></o:p></p><p class=MsoNormal>Gloucester, MA. 01930<o:p></o:p></p><p class=MsoNormal>Cell 978 375 3509<o:p></o:p></p><p class=MsoNormal>Fax 978 281 1555<o:p></o:p></p><p class=MsoNormal>Web <a href="http://nefs2.com/">http://nefs2.com/</a><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div class=MsoNormal align=center style='text-align:center'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'></body></html>
</body>
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`
【问题讨论】：
-
您能否提供一个示例输入 HTML 来演示该问题？
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那是你要找的 HTML 吗？抱歉，如果我误解了您的问题，那不是您要找的内容
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是的，我想是的。此 HTML 仅包含 5/21。最终目标是什么——你想从这个 HTML 中提取什么？谢谢。
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5/21？你确定你说的不是 5/12？因为我的表中没有 5/21。我添加了上表的图片。理想情况下，我想获取与最近日期相对应的所有数据。在某些情况下，最近的日期将只是第一行，但在这种情况下，第一个日期跨越 3 行。这就是为什么我需要某种 if 循环来检查第一个下方的行是否也具有相同的日期。够清楚吗？如果我没有提供足够的信息，请告诉我。
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好的，明白了。请提供表格的完整 HTML。我有个主意。
标签： python html beautifulsoup html-parsing