导入mechanize时我在python3中出错

Question

导入mechanize时我在python3中出错.

我刚刚在我的virtualenv中安装了机械化,其中安装了python3.

$ which python3
/Users/myname/.virtualenvs/python3/bin/python3

$ pip freeze
mechanize==0.2.5

但是,当我尝试在我的python代码中导入mechanize时,我收到此错误.

import mechanize

---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
<ipython-input-1-6b82e40e2c8e> in <module>()
----> 1 import mechanize

/Users/myname/.virtualenvs/python3/lib/python3.3/site-packages/mechanize/__init__.py in <module>()
    117 import sys
    118 
--> 119 from _version import __version__
    120 
    121 # high-level stateful browser-style interface

ImportError: No module named '_version'

有谁知道如何解决这个问题？

我是python的新手,这些天我一直在研究如何在python中编程.

感谢您的帮助!

更新

我已经为python3安装了mechanize.现在,我有另一个错误.

In [1]: import mechanize
---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
<ipython-input-1-6b82e40e2c8e> in <module>()
----> 1 import mechanize

/Users/myname/.virtualenvs/python3/lib/python3.3/site-packages/mechanize-0.2.6.dev_20140305-py3.3.egg/mechanize/__init__.py in <module>()
    120 
    121 # high-level stateful browser-style interface
--> 122 from ._mechanize import \
    123      Browser, History, \
    124      BrowserStateError, LinkNotFoundError, FormNotFoundError

/Users/myname/.virtualenvs/python3/lib/python3.3/site-packages/mechanize-0.2.6.dev_20140305-py3.3.egg/mechanize/_mechanize.py in <module>()

/Users/myname/.virtualenvs/python3/lib/python3.3/site-packages/mechanize-0.2.6.dev_20140305-py3.3.egg/mechanize/_html.py in <module>()

ImportError: cannot import name _sgmllib_copy

我查看了我在工作virtualenv中安装的内容.我发现了一些警告.

$ pip freeze
cssselect==0.9.1
httplib2==0.8
ipython==1.1.0
lxml==3.2.4
## FIXME: could not find svn URL in dependency_links for this package:
mechanize==0.2.6.dev-20140305
pyquery==1.2.8
Warning: cannot find svn location for mechanize==0.2.6.dev-20140305

Answer 1

唉,mechanize不支持Python 3. http://wwwsearch.sourceforge.net/mechanize/faq.html

Python 2.4,2.5,2.6或2.7.Python 3尚不支持.

您可以在https://github.com/jjlee/mechanize/issues/96上对此问题发表评论

更新:我编写了自己的自动化库MechanicalSoup.它与Python 3兼容 https://github.com/hickford/MechanicalSoup

Answer 2

MechanicalSoup模块在同一库中合并了Mechanical和BeautifulSoup，并且从python 2.6到3.4可以使用。

在命令提示符下安装MechanicalSoup：

pip install MechanicalSoup

然后导入python，

import mechanicalsoup # Don’t forget to import the new module

Answer 3

我认为您可能已经安装了 mechanize 的 Python 2 版本，并且新的 Python 3 导入语义正在破坏旧的 Python 2 代码。快速搜索一下，似乎 Python 3 对 mechanize 的支持还是有点弱。不过，我确实找到了一个Python 3分支。

您可以尝试从我链接到的源代码手动安装。下载源代码后，更改目录，以便位于 mechanize 目录中。然后$python3 setup.py install在终端中输入。