我正在尝试通过提取中的城市和区号来抓取此阿富汗页面table。现在,当我尝试刮擦此美国萨摩亚页面时,findAll()找不到<td>正确的页面。如何捕获此异常?
这是我的代码:
from bs4 import BeautifulSoup
import urllib2
import re
url = "http://www.howtocallabroad.com/american-samoa"
html_page = urllib2.urlopen(url)
soup = BeautifulSoup(html_page)
areatable = soup.find('table',{'id':'codes'})
d = {}
def chunks(l, n):
return [l[i:i+n] for i in range(0, len(l), n)]
li = dict(chunks([i.text for i in areatable.findAll('td')], 2))
if li != []:
print li
for key in li:
print key, ":", li[key]
else:
print "list is empty"
这是我得到的错误
Traceback (most recent call last):
File "extract_table.py", line 15, in <module>
li = dict(chunks([i.text for i in areatable.findAll('td')], 2))
AttributeError: 'NoneType' object has no attribute 'findAll'
我也试过了,但是也没用
def gettdtag(tag):
return "empty" if areatable.findAll(tag) is None else tag
all_td = gettdtag('td')
print all_td
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