1. 环境
- Python
mac os预装的python
$ python -V Python 2.7.10 $ where python /usr/bin/python $ ls /System/Library/Frameworks/Python.framework/Versions 2.3 2.5 2.6 2.7 Current $ ls /Library/Frameworks/Python.framework/Versions (用户安装的目录)
- IDE
Pycharm
- 辅助
安装pip
sudo easy_install pip
- Python库
sudo pip install requests (默认安装requests 2.13.0) sudo pip install BeautifulSoup (默认安装BeautifulSoup 3.2.1)sudo pip install lxml (默认安装lxml 3.7.3)
2. 问题
- 问题1
代码:
soup = BeautifulSoup(html, ‘lxml‘)
报错:
Traceback (most recent call last):
File "/Users/cuizhenyu/Documents/Codes/Python/DownloadMeitu/LibBeautifulSoupTest.py", line 15, in <module>
soup = BeautifulSoup(html) #soup = BeautifulSoup(html, ‘lxml‘)报错
TypeError: ‘module‘ object is not callable
解决:
from BeautifulSoup import BeautifulSoup
- 问题2
代码:
soup = BeautifulSoup(html, ‘lxml‘)
报错:
Traceback (most recent call last):
File "/Users/cuizhenyu/Documents/Codes/Python/DownloadMeitu/LibBeautifulSoupTest.py", line 15, in <module>
soup = BeautifulSoup(html, ‘lxml‘) #soup = BeautifulSoup(html, ‘lxml‘)报错
File "/Library/Python/2.7/site-packages/BeautifulSoup.py", line 1522, in __init__
BeautifulStoneSoup.__init__(self, *args, **kwargs)
File "/Library/Python/2.7/site-packages/BeautifulSoup.py", line 1147, in __init__
self._feed(isHTML=isHTML)
File "/Library/Python/2.7/site-packages/BeautifulSoup.py", line 1189, in _feed
SGMLParser.feed(self, markup)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/sgmllib.py", line 104, in feed
self.goahead(0)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/sgmllib.py", line 138, in goahead
k = self.parse_starttag(i)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/sgmllib.py", line 296, in parse_starttag
self.finish_starttag(tag, attrs)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/sgmllib.py", line 338, in finish_starttag
self.unknown_starttag(tag, attrs)
File "/Library/Python/2.7/site-packages/BeautifulSoup.py", line 1338, in unknown_starttag
self.endData()
File "/Library/Python/2.7/site-packages/BeautifulSoup.py", line 1251, in endData
(not self.parseOnlyThese.text or \
AttributeError: ‘str‘ object has no attribute ‘text‘
解决:
当前BeautifulSoup是v3版,不支持lxml等,需用v4版。