Python代码仅适用于标题标签，不适用于表格

Question

在正则表达式中写入<title>(.+?)</title>时它正在工作，但是当此标题标签更改为 <table>(.+?)</table> 时它给出“[]”(方括号)作为输出。 我的代码是:

import urllib
import re

urls = ["http://physics.iitd.ac.in/content/list-faculty-members", "http://www.iitkgp.ac.in/commdir3/list.php?division=3&deptcode=ME","http://www.iitkgp.ac.in/commdir3/list.php?division=3&deptcode=CE"]
i = 0
regex = '<table>(.+?)</table>'
pattern = re.compile(regex)

while i< len(urls):
    htmlfile = urllib.urlopen(urls[i])
    htmltext = htmlfile.read()
    tables  = re.findall(pattern,htmltext)

    print tables
    i+=1

Answer 1

使用BeautifulSoup :

import urllib
import re

from BeautifulSoup import BeautifulSoup as bs

urls = ["http://physics.iitd.ac.in/content/list-faculty-members", 
        "http://www.iitkgp.ac.in/commdir3/list.php?division=3&deptcode=ME", 
        "http://www.iitkgp.ac.in/commdir3/list.php?division=3&deptcode=CE"]
i = 0

while i < len(urls):
    htmlfile = urllib.urlopen(urls[i])
    htmltext = htmlfile.read()
    soup = bs(htmltext)
    tables = soup.find_all('table')

    print tables
    i+=1