我在学习爬虫的时候想把里面的标签去掉,但是使用re.sub不成功。代码如下:
#!usr/bin/env python3 #coding:utf-8 from urllib.request import urlopen from bs4 import BeautifulSoup import re html = urlopen("http://www.jianshu.com") bsObj = BeautifulSoup(html,"lxml") txt = bsObj.findAll("p",{"class":re.compile("abstract")}) for word in txt: if '' in word: newword = re.sub(r'
','\n',word) print(newword) else: print(word)
请问这是是什么问题,谢谢!
字符串对象p并不包含"sub"方法:
newword = p.sub('\n', word) # -> re.sub(.....)
写一小段代码给题主参考一下子:
import re
word = '<p class="abstract">AAAA<p class="abstract">bbb'
p = '<p class="abstract">'
newword = re.sub(p, '\n', word)
'''
Result:
In [21]: newword
Out[21]: '\nAAAA\nbbb'
In [22]: print newword
AAAA
bbb
In [23]:
'''
In [19]: type(word) Out[19]: bs4.element.Tag
找到原因了,word不是一个字符串。