我正在使用本教程中的以下代码。
import urllib2
from urllib import urlopen
from BeautifulSoup import BeautifulSoup
import re
webpage = urlopen('http://feeds.huffingtonpost.com/huffingtonpost/LatestNews').read
# open webpage and read it web page is variable
patFinderTitle = re.compile('<title>(.*)</title>')
# get characters between titles
patFinderLink = re.compile('<link rel.*href="(.*)" />')
findPatTitle = re.findall(patFinderTitle, webpage)
# variable is declared, uses re module to find all find two variables using the following args
findPatLink = re.findall(patFinderLink, webpage)
listIterator - []
listIterator[:] = range(2,16)
soup2 = BeautifulSoup(webpage)
print soup2.findAll('title')
但是，我收到此错误。
Traceback (most recent call last):
File "tutorial_re.py", line 14, in <module>
findPatTitle = re.findall(patFinderTitle, webpag
File "C:\Python27\lib\re.py", line 177, in findall
return _compile(pattern, flags).findall(string)
TypeError: expected string or buffer
我正在使用python 2.75。我根本不明白这个错误。为什么我有这个错误？我该如何解决？提前感谢您的帮助。一些论坛说我应该给它第三个参数，但代码对我来说似乎是逐字记录的，因为它在 9:45 左右的视频中。