如何从python漂亮的汤中从表中获取tbody？
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how to get tbody from table from python beautiful soup ?
提问by JPC
I'm trying to scrap Year & Winners ( first & second columns ) from "List of finals matches" table (second table) from http://en.wikipedia.org/wiki/List_of_FIFA_World_Cup_finals: I'm using the code below:
我正在尝试从http://en.wikipedia.org/wiki/List_of_FIFA_World_Cup_finals 的“决赛比赛列表”表（第二个表）中删除年份和获胜者（第一列和第二列） ：我正在使用以下代码：
import urllib2
from BeautifulSoup import BeautifulSoup
url = "http://www.samhsa.gov/data/NSDUH/2k10State/NSDUHsae2010/NSDUHsaeAppC2010.htm"
soup = BeautifulSoup(urllib2.urlopen(url).read())
soup.findAll('table')[0].tbody.findAll('tr')
for row in soup.findAll('table')[0].tbody.findAll('tr'):
first_column = row.findAll('th')[0].contents
third_column = row.findAll('td')[2].contents
print first_column, third_column
With the above code, I was able to get first & thrid column just fine. But when I use the same code with http://en.wikipedia.org/wiki/List_of_FIFA_World_Cup_finals, It could not find tbody as its element, but I can see the tbody when I inspect the element.
使用上面的代码，我能够很好地获得第一列和第三列。但是当我使用与 相同的代码时http://en.wikipedia.org/wiki/List_of_FIFA_World_Cup_finals，它找不到 tbody 作为它的元素，但是当我检查元素时我可以看到 tbody。
url = "http://en.wikipedia.org/wiki/List_of_FIFA_World_Cup_finals"
soup = BeautifulSoup(urllib2.urlopen(url).read())
print soup.findAll('table')[2]
soup.findAll('table')[2].tbody.findAll('tr')
for row in soup.findAll('table')[0].tbody.findAll('tr'):
first_column = row.findAll('th')[0].contents
third_column = row.findAll('td')[2].contents
print first_column, third_column
Here's what I got from comment error:
这是我从评论错误中得到的：
'
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
<ipython-input-150-fedd08c6da16> in <module>()
7 # print soup.findAll('table')[2]
8
----> 9 soup.findAll('table')[2].tbody.findAll('tr')
10 for row in soup.findAll('table')[0].tbody.findAll('tr'):
11 first_column = row.findAll('th')[0].contents
AttributeError: 'NoneType' object has no attribute 'findAll'
'
回答by Derek Litz
If you are inspecting through the inspect tool in the browser it will insert the tbodytags.
如果您通过浏览器中的检查工具进行检查，它将插入tbody标签。
The source code, may, or may not contain them. I suggest looking at the source view if you really want to know.
源代码可能包含也可能不包含它们。如果您真的想知道，我建议查看源视图。
Either way, you do not need to traverse to the tbody, simply:
无论哪种方式，您都不需要遍历 tbody，只需：
soup.findAll('table')[0].findAll('tr')should work.
soup.findAll('table')[0].findAll('tr')应该管用。
回答by GMPrazzoli
url = "http://en.wikipedia.org/wiki/List_of_FIFA_World_Cup_finals"
soup = BeautifulSoup(urllib2.urlopen(url).read())
for tr in soup.findAll('table')[2].findAll('tr'):
#get data
And then search what you need in the table :)
然后在表中搜索您需要的内容:)
回答by Rohit Yadav
Directly run the below code.
直接运行下面的代码。
tr_elements = soup.find_all('table')[2].find_all('tr')
tr_elements = soup.find_all('table')[2].find_all('tr')
By doing this, you can access the all the <tr>; You will have to use for loop for doing this (There are other possible ways to iterate too). Don't try to find the tbody, it gets added by default.
通过这样做，您可以访问所有的<tr>；您将不得不使用 for 循环来执行此操作（还有其他可能的迭代方法）。不要试图找到tbody，默认情况下它会被添加。
Note:
笔记：
If you are having a problem in getting to the desired tag, decompose the previous tags with .decompose()method.
如果在获取所需标签时遇到问题，请使用.decompose()方法分解先前的标签。
