我是Python和Selenium的新手，并且仍处于学习阶段。我一直在尝试使用新的用于Selenium的Python Webdriver以及以下代码启动IE8以及Firefox。
from selenium import webdriver
from selenium.common.exceptions import NoSuchElementException
from selenium.webdriver.common.keys import Keys
driver = webdriver.Ie()
#driver = webdriver.Firefox()
driver.get("http://www.google.com")
如果是Firefox，它会在我的主页上启动broswer，而它甚至不会启动IE8浏览器。
在任何一种情况下，我都可以在命令提示符窗口中看到此异常。
File "C:\Documents and Settings\user.name\My Documents\seleniumScripts\test1.py",
line > 8, in <module>
driver = webdriver.Ie()
File "C:\Python27\lib\site-packages\selenium-2.7.0
-py2.7.egg\selenium\webdriver\ie\webdriver.py", line 58, in __init_
desired_capabilities=DesiredCapabilities.INTERNETEXPLORER)
File "C:\Python27\lib\site-packages\selenium-2.7.0-
py2.7.egg\selenium\webdriver\remote\webdriver.py", line 61, in __i
it__self.start_session(desired_capabilities, browser_profile)
File "C:\Python27\lib\site-packages\selenium-2.7.0
- py2.7.egg\selenium\webdriver\remote\webdriver.py", line 98, in sta
t_session
'desiredCapabilities': desired_capabilities,
File "C:\Python27\lib\site-packages\selenium-2.7.0-
py2.7.egg\selenium\webdriver\remote\webdriver.py", line 144, in excute
self.error_handler.check_response(response)
File "C:\Python27\lib\site-packages\selenium-2.7.0-
py2.7.egg\selenium\webdriver\remote\errorhandler.py", line 100,
in check_response
raise exception_class(value)
selenium.common.exceptions.WebDriverException: Message: '<!DOCTYPE HTML PUBLIC "- //W3C//DTD HTML 4.0 Transitional//EN">
r\n<HTML><HEAD><TITLE>Error Message</TITLE>\r\n<META http-equiv=Content-Type
content="text/html; charset=UTF-8">\r\n<ST
LE id=L_default_1>A {\r\n\tFONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: #005a80; FONT- FAMILY: tahoma\r\n}\r\nA:hover {\r\
\tFONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: #0d3372; FONT-FAMILY: tahoma\r\n}\r\nTD
{\r\n\tFONT-SIZE: 8pt; FONT-FAMILY
tahoma\r\n}\r\nTD.titleBorder {\r\n\tBORDER-RIGHT: #955319 1px solid; BORDER-TOP:
#955319 1px solid; PADDING-LEFT: 8px
FONT-WEIGHT: bold; FONT-SIZE: 12pt; VERTICAL-ALIGN: middle; BORDER-LEFT: #955319 0px
solid; COLOR: #955319; BORDER-BOT
OM: #955319 1px solid; FONT-FAMILY: tahoma; HEIGHT: 35px; BACKGROUND-COLOR: #d2b87a;
TEXT-ALIGN: left\r\n}\r\nTD.titleB
rder_x {\r\n\tBORDER-RIGHT: #955319 0px solid; BORDER-TOP: #955319 1px solid; PADDING- LEFT: 8px; FONT-WEIGHT: bold; FON
-SIZE: 12pt; VERTICAL-ALIGN: middle; BORDER-LEFT: #955319 1px solid; COLOR: #978c79;
BORDER-BOTTOM: #955319 1px solid;
ONT-FAMILY: tahoma; HEIGHT: 35px; BACKGROUND-COLOR: #d2b87a; TEXT-ALIGN: left\r\n}
\r\n.TitleDescription {\r\n\tFONT-WEI
HT: bold; FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: tahoma\r\n}
\r\nSPAN.explain
{\r\n\tFONT-WEIGHT: normal; FONT-SIZE
10pt; COLOR: #934225\r\n}\r\nSPAN.TryThings {\r\n\tFONT-WEIGHT: normal; FONT-SIZE:
10pt;
COLOR: #934225\r\n}\r\n.TryLi
t {\r\n\tMARGIN-TOP: 5px; FONT-WEIGHT: normal; FONT-SIZE: 8pt; COLOR: black; FONT-FAMILY:
tahoma\r\n}\r\n.X {\r\n\tBORD
R-RIGHT: #955319 1px solid; BORDER-TOP: #955319 1px solid; FONT-WEIGHT: normal; FONT-
SIZE: 12pt; BORDER-LEFT: #955319 1
x solid; COLOR: #7b3807; BORDER-BOTTOM: #955319 1px solid; FONT-FAMILY: verdana;
BACKGROUND-COLOR: #d1c2b4\r\n}\r\n.adm
nList {\r\n\tMARGIN-TOP: 2px\r\n}\r\n</STYLE>\r\n<META content="MSHTML 6.00.2800.1170"
name=GENERATOR></HEAD>\r\n<BODY
gColor=#f3f3ed>\r\n<TABLE cellSpacing=0 cellPadding=0 width="100%">\r\n <TBODY>\r\n
<TR>\r\n <TD class=titleborder
x width=30>\r\n <TABLE height=25 cellSpacing=2 cellPadding=0 width=25
bgColor=black>\r\n <TBODY>\r\n
<TR>\r\n <TD class=x vAlign=center align=middle>X</TD>\r\n
</TR>\r\n </TBODY>\r\n </TABLE>\
\n </TD>\r\n <TD class=titleBorder id=L_default_2>Network Access Message:<SPAN
class=TitleDescription> The page cannot be displayed</SPAN> </TD>\r\n </TR>\r\n
</TBODY>\r\n</TABLE>\r\n\r\n<TABLE id=spacer>\r\n <TBODY>\r\n <TR>\r\n
<TD height=10></TD></TR></TBODY></TABLE>\r\n<TABLE width=400>\r\n <TBODY>\r\n
<TR>\r\n
<TD noWrap width=25></TD\r\n <TD width=400><SPAN class=explain><ID
id=L_default_3><B>Explanation:</B></ID></SPAN><ID id=L_default_4> There i
a problem with the page you are trying to reach and it cannot be displayed.
</ID><BR><BR>\r\n <B><SPAN class=tryThi
gs><ID id=L_default_5><B>Try the following:</B></ID></SPAN></B> \r\n <UL
class=TryList>\r\n <LI id=L_defaul
_6><B>Refresh page:</B> Search for the page again by clicking the Refresh button. The
timeout may have occurred due to
nternet congestion.\r\n<LI id=L_default_7><B>Check spelling:</B> Check that you typed
the Web page address correctly. The address may have been mistyped.\r\n<LI
id=L_default_8><B>Access from a link:</B> If
there is a link to the page you a
e looking for, try accessing the page from that link.\r\n\r\n </UL>\r\n<ID
id=L_default_9>If you are still not abl
to view the requested page, try contacting your administrator or Helpdesk.</ID>
<BR><BR>\r\n </TD>\r\n </TR>\r\n
/TBODY>\r\n</TABLE>\r\n\r\n<TABLE id=spacer><TBODY><TR><TD
height=15></TD></TR></TBODY></TABLE>\r\n\r\n<TABLE width=400
\r\n <TBODY>\r\n <TR>\r\n <TD noWrap width=25></TD>\r\n <TD width=400
id=L_default_10><B>Technical Information
for support personnel)</B> \r\n <UL class=adminList>\r\n <LI
id=L_default_11>Error Code: 407 Proxy Authenti
ation Required. The ISA Server requires authorization to fulfill the request. Access to
the Web Proxy filter is denied.
(12209)\r\n<LI id=L_default_12>IP Address: 11.1.11.111\r\n<LI id=L_default_13>Date:
9/30/2011 3:23:59 PM [GMT]\r\n<LI i
=L_default_14>Server: servername.com\r\n<LI id=L_default_15>Source: proxy\r\n\r\n
</UL>\r\n </TD>
r\n </TR>\r\n </TBODY>\r\n</TABLE>\r\n\r\n</BODY>\r\n</HTML>\r\n\r\n'
因为我现在完全陷入困境并且有点绝望，所以任何帮助都会被确定。
由于