Python：在beautifulsoup中如何从这样的标记中获取文本

Question

我需要得到这个链接的日期和时间：“https://www.pagina12.com.ar/225378-murio-cacho-castana-simbolo-del-macho-porteno”或任何网站“https://www.pagina12.com.ar/”

结构如下：

<div class="article-info"><div class="breadcrumb"><div class="suplement"><a href="https://www.pagina12.com.ar/suplementos/cultura-y-espectaculos/notas">Cultura y Espectáculos</a></div><div class="topic"></div></div><div class="time"><span datetime="2019-10-15" pubdate="pubdate">15 de octubre de 2019</span><span> · </span><span>Actualizado hace <span class="article-time" data-time="1571156914">3 hs</span></span></div></div>

我做到了：

cosa = requests.get('https://www.pagina12.com.ar/225378-murio-cacho-castana-simbolo-del-macho-porteno').text
parse = BeautifulSoup(cosa, 'html5lib')
info = parse.findAll('div', {'class':'article-info'})

然后我试着得到的文字，说'3小时'，不能访问它，不知道怎么做。有人有主意吗

谢谢

Answer 1

您可以从data-time属性进行计算

from bs4 import BeautifulSoup as bs
import requests, datetime
import dateutil.relativedelta

r = requests.get('https://www.pagina12.com.ar/225378-murio-cacho-castana-simbolo-del-macho-porteno')
soup = bs(r.content, 'lxml')
dt1 = datetime.datetime.fromtimestamp(float(soup.select_one('[data-time]')['data-time']))
dt2 = datetime.datetime.fromtimestamp(datetime.datetime.now().timestamp()) 
diff = dateutil.relativedelta.relativedelta(dt2, dt1)
print(diff.hours)