从 span 标签中获取日期

Question

使用 Beautiful Soup，我想从包含 url 列表的文本文件中提取日期。其中日期在带有 div class = update 的 span 标签中定义。当我尝试使用下面的代码时，我得到的结果是 <span id="time"></span> 但不是确切的时间。请 help.for 例如 sabah_url.txt 中的链接类型是“http://www.dailysabah.com/world/2012/02/20/seeking-international-support-to-block-assad”

from cookielib import CookieJar
import urllib2
from bs4 import BeautifulSoup
cj = CookieJar()
opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))
try:
    url_file = open('sabah_url.txt', 'r')
    for line in url_file:
       print line
       #Opens each extracted URL with urllib2 library
       data = urllib2.urlopen(line).read()
       soup = BeautifulSoup(data)
       #Extracts all the dates of URLs ith its respective class as defined
       date = soup.find_all('span', {'id': 'time'})
       for item in date:
          print item 
except BaseException, e:
    print 'failed', str(e) 
    pass

Answer 1

假设您打算获取 发布日期 ，您可以从 meta 标签中获取它：

import urllib2
from bs4 import BeautifulSoup

url = "http://www.dailysabah.com/world/2012/02/20/seeking-international-support-to-block-assad"

data = urllib2.urlopen(url)
soup = BeautifulSoup(data)

print soup.find('meta', itemprop='datePublished', content=True)['content']

打印 2012-02-20T17:41:01Z.

要使其看起来像 "February 20, 2012"，您可以使用 python-dateutil 模块：

>>> from dateutil import parser
>>> s = "2012-02-20T17:41:01Z"
>>> parser.parse(s)
datetime.datetime(2012, 2, 20, 17, 41, 1, tzinfo=tzutc())
>>> parser.parse(s).strftime('%B %d, %Y')
'February 20, 2012'

从 span 标签中获取日期

Get the date from span tags

python

beautifulsoup

web-scraping