python - 登录网站，ImportError:cannot import name GopherError

Question

我正在尝试使用该mechanize模块登录网站。我的脚本是：

import mechanize
from mechanize import Browser

def main():
    try:
        br = mechanize.Browser()
        br.open("site name")
        print br.title()

    except:
        print "error"

if __name__ == '__main__':
    main()

每次我运行它我都会得到ImportError: cannot import name GopherError

Traceback (most recent call last):
  File "example.py", line 11, in <module>
    import mechanize
  File "C:\Python27\lib\site-packages\mechanize\__init__.py", line 85, in <modul
e>
    from _mechanize import __version__
  File "C:\Python27\lib\site-packages\mechanize\_mechanize.py", line 14, in <mod
ule>
    from _useragent import UserAgentBase
  File "C:\Python27\lib\site-packages\mechanize\_useragent.py", line 17, in <mod
ule>
    import _urllib2
  File "C:\Python27\lib\site-packages\mechanize\_urllib2.py", line 3, in <module
>
    from urllib2 import \
ImportError: cannot import name GopherError

有人可以帮帮我吗？