将表嵌入到列表中后，使用bs4在列表中捕获信息

Question

For this html code:

<ul><li>Include these codes as defined in http://unitsofmeasure.org
    <table><tr><td><b>Code</b>
    </td><td><b>Display</b></td></tr>
    <tr><td>min</td><td>Minute</td><td></td></tr>
    <tr><td>h</td><td>Hour</td><td></td></tr><tr>
    <td>d</td><td>Day</td><td></td></tr>
    </table></li></ul>

I just want the information in <li> section, I mean "Include these codes as defined in http://unitsofmeasure.org" . But because </li> is ended after table, BS4 also captures information in the table. This is my code:

definition = [li.get_text() for li in ul.findAll("li")]

And this is the output:

[u'Include these codes as defined in http://unitsofmeasure.orgCodeDisplayminMinutehHourdDaywkWeekmoMonthaYear']

How can I edit the code to not capture information in the table?

Answer 1

您可以使用extract（）删除表。

definition = [li.find('table').extract().get_text() for li in ul.findAll("li")]

Answer 2

Try to move up from table tag using previousSibling , more info about available methods at https://www.crummy.com/software/BeautifulSoup/bs4/doc/#method-names

t = soup.find('table')
print t.previousSibling