错误“调用的对象已与其客户端断开连接”-使用python和win32com自动化IE 8

Question

我想自动化InternetExplorer8（在Windows7上使用Python2.7）机器。这是我在a post found on SO之后的代码：

import sys, time
from win32com.client import WithEvents, Dispatch
import pythoncom
import threading    

stopEvent=threading.Event()

class EventSink(object): 
    def OnNavigateComplete2(self,*args):
        print "complete",args
        stopEvent.set()



def waitUntilReady(ie):
    if ie.ReadyState!=4:
        while 1:
            print "waiting"
            pythoncom.PumpWaitingMessages()
            stopEvent.wait(.2)
            if stopEvent.isSet() or ie.ReadyState==4:
                stopEvent.clear()
                break;   

if __name__ == '__main__':
    time.clock()
    ie=Dispatch('InternetExplorer.Application',EventSink)
    ev=WithEvents(ie,EventSink)       
    ie.Visible=True
    ie.AddressBar = True
    ie.Navigate("http://www.sap.com/austria/index.epx")
    waitUntilReady(ie)

我收到了http://www.sap.com/austria/index.epx的以下错误消息：

waiting
waiting
Traceback (most recent call last):
  File "C:\Users\w\My Documents\Aptana Studio 3 Workspace\MyApp\src\GoToIdeaWindow.py", line 41, in <module>
    waitUntilReady(ie)
  File "C:\Users\w\My Documents\Aptana Studio 3 Workspace\MyApp\src\GoToIdeaWindow.py", line 26, in waitUntilReady
    if stopEvent.isSet() or ie.ReadyState==4:
  File "C:\Python27\lib\site-packages\win32com\client\__init__.py", line 463, in __getattr__
    return self._ApplyTypes_(*args)
  File "C:\Python27\lib\site-packages\win32com\client\__init__.py", line 456, in _ApplyTypes_
    self._oleobj_.InvokeTypes(dispid, 0, wFlags, retType, argTypes, *args),
pywintypes.com_error: (-2147417848, 'The object invoked has disconnected from its clients.', None, None)

该代码非常适合google.com或bbc.com。有人知道原因吗？

Answer 1

在IE9上，需要降低安全设置才能使脚本工作：

IE9 -> Internet Options -> Security -> Trusted Sites    : Low
IE9 -> Internet Options -> Security -> Internet         : Medium + unchecked Enable Protected Mode
IE9 -> Internet Options -> Security -> Restricted Sites : unchecked Enable Protected Mode