使用python,LXML&从网站上的表格中提取信息. XPATH [英] Extracting information from a table on a website using python, LXML & XPATH
问题描述
经过大量的努力,我设法从该网站的表格中提取了一些我需要的信息:
I managed after lots of hard work to extract some information that i needed from a table from this website:
http://gbgfotboll.se/serier/?scr=table&ftid= 57108
我从"Kommande Matcher"表(第二张表)中提取了日期和球队名称.
From the table "Kommande Matcher"(second table) I managed to extract the date and the team names.
但是现在我完全想尝试从第一个表中提取内容:
But now i am totally stuck trying to extract from the first table:
-
第一列滞后"
The first column "Lag"
第二列"S"
6h列"GM-IM"
6h column "GM-IM"
最后一列"P"
有什么想法吗? ,谢谢
Any ideas? , Thanks
推荐答案
我刚刚做到了:
from io import BytesIO
import urllib2 as net
from lxml import etree
import lxml.html
request = net.Request("http://gbgfotboll.se/serier/?scr=table&ftid=57108")
response = net.urlopen(request)
data = response.read()
collected = [] #list-tuple of [(col1, col2...), (col1, col2...)]
dom = lxml.html.parse(BytesIO(data))
#all table rows
xpatheval = etree.XPathDocumentEvaluator(dom)
rows = xpatheval('//div[@id="content-primary"]/table[1]/tbody/tr')
for row in rows:
columns = row.findall("td")
collected.append((
columns[0].find("a").text.encode("utf8"), # Lag
columns[1].text, # S
columns[5].text, # GM-IM
columns[7].text, # P - last column
))
for i in collected: print i
您可以直接在lxml.html.parse()中传递URL,而不用调用urllib2.另外,您还可以按类属性来获取目标表,如下所示:
You could to pass URL in lxml.html.parse() directly rather than call urllib2. Also, you'd grab target table by class attribute, like this:
# new version
from lxml import etree
import lxml.html
collected = [] #list-tuple of [(col1, col2...), (col1, col2...)]
dom = lxml.html.parse("http://gbgfotboll.se/serier/?scr=table&ftid=57108")
#all table rows
xpatheval = etree.XPathDocumentEvaluator(dom)
rows = xpatheval("""//div[@id="content-primary"]/table[
contains(concat(" ", @class, " "), " clTblStandings ")]/tbody/tr""")
for row in rows:
columns = row.findall("td")
collected.append((
columns[0].find("a").text.encode("utf8"), # Lag
columns[1].text, # S
columns[5].text, # GM-IM
columns[7].text, # P - last column
))
for i in collected: print i
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