[python-win32] COM AttributeError Inquiry

[Mike O'Driscoll]

Hi,

 

First time contacting this mailing list... please forgive and
discrepancies I may make.

 

I have a threaded module with an internal com object.  If I make a call
from outside the module everything works ok.

If I make a call internal to the module it decides to give me the
following exception:

 

File "C:\Python25\Lib\site-packages\win32com\client\dynamic.py", line
500, in

__getattr__

    raise AttributeError, "%s.%s" % (self._username_, attr)

AttributeError: MyApp.AutomationProxy.Control

 

#################Code Snippet##################

 

import win32com.client

from threading import Thread, Event

import thread, threading

 

class AppController(Thread):

    def __init__(self):

        """Set up the class"""

        Thread.__init__(self)

        self.stopevent = threading.Event()

        self.app = win32com.client.Dispatch("MyApp.AutomationProxy")

        if not(self.app):

            print "Could not open MyApp Application"

            exit(1)

 

    def join(self, timeout=None):

        """Stop the thread and wait for it to finish"""

        del self.app

        print "App Finished"

        self.stopevent.set()

        Thread.join(self, timeout)

 

    def run(self):

            while not self.stopevent.isSet():

self.app.Control("myCommand") #Exception raised Here!?

#--------------------------------------------------

# Main Program

#--------------------------------------------------

 

if __name__ == '__main__':

    appCtrl = AppController()

    appCtrl.start()

   

    appCtrl.app.Control("myCommand") #Exception NOT raised?

 

    print "Press Any Key to Quit"

    import msvcrt

    while not msvcrt.kbhit():

        pass

 

# Gobble the key.

msvcrt.getch()

rtgCtrl.join()

exit(0)

 

#################End Code########################

 

I'm confused as to why using the object can complete the call, but when
calling within the class raises the attributeError exception.

Does the threading have something to do with it? (I have other threads
like this but removed to keep this short)

Any help appreciated.

 

Thanks,

 

Mike O'Driscoll
Intern Software Application Developer
3G Architecture | RIM Cellular Technologies

 


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