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Groups > comp.lang.python > #17798

Timeout when calling COM objects on Windows

From Wong Wah Meng-R32813 <r32813@freescale.com>
Subject Timeout when calling COM objects on Windows
Date 2011-12-23 11:20 +0000
References (3 earlier) <f3124c2a-61e2-4e1e-bd35-6c209fab60e0@d6g2000pra.googlegroups.com> <5a7a7aab-a320-4429-a130-ffcfcf0ac174@v24g2000prn.googlegroups.com> <4EF440A9.7030101@stoneleaf.us> <mailman.4025.1324634359.27778.python-list@python.org> <77861e74-c4fa-4f3f-8f28-853a1a319b1d@l16g2000prg.googlegroups.com>
Newsgroups comp.lang.python
Message-ID <mailman.4029.1324643782.27778.python-list@python.org> (permalink)

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Hello there,

I am converting my VB ActiveX application written sometime back in year 2000 with python 1.5.2 to run in python 2.7.1. 

My application is using RMI architecture and I am using a pythonOleRmi.py parser to exchange data/objects between the python and the VB exe. 

I have no issue when my VB EXE is not running as a COM server while making python API calls where my application server is written purely in python and runs on UNIX. However, when my VB EXE is running as a COM server, this code seems hangs when I make the python API same call to the application server. Is there something that I need to change or configure in order to run this successfully? Or to make some security setting on my Windows? (My VB EXE is run on Windows 7 now, will try out if the same issue is encountered on XP next week). 

Is the issue resided in the calling to the local daemon process (10.228.70.137:26000), or it is some security setting depicted in the policy.py file?



Collecting Python Trace Output...
Proxy called with: MatlMgr, getCompatibleFTCSVersions(), (), {}
Dec 23 18:41:21 OleRmiClient     Timeout of 300 seconds occurred on the invocati
on of ('getAppAddress', (u'MatlMgr',), {}) to ('10.228.70.137', 26000)
pythoncom error: Python error invoking COM method.

Traceback (most recent call last):
  File "C:\genesis\Enablers\Python\lib\site-packages\win32com\server\policy.py",
 line 277, in _Invoke_
    return self._invoke_(dispid, lcid, wFlags, args)
  File "C:\genesis\Enablers\Python\lib\site-packages\win32com\server\policy.py",
 line 282, in _invoke_
    return S_OK, -1, self._invokeex_(dispid, lcid, wFlags, args, None, None)
  File "C:\genesis\Enablers\Python\lib\site-packages\win32com\server\policy.py",
 line 585, in _invokeex_
    return func(*args)
  File "C:\genesis\Product\Lib\PythonOleRmi.py", line 240, in Proxy
    proxy = self._getProxyObj(pyserverString)
  File "C:\genesis\Product\Lib\PythonOleRmi.py", line 223, in _getProxyObj
    None, self._logWriter, rem_admin_addr = remAddr )
  File "C:\genesis\Product\Lib\EComponent.py", line 710, in __init__
    addr = self._getAppProxyAddress()
  File "C:\genesis\Product\Lib\EComponent.py", line 742, in _getAppProxyAddress
    addr = remAdmin.getAppAddress(self.server_name)
  File "C:\genesis\Product\Lib\EComponent.py", line 611, in __call__
    self._method, args, kw )
  File "C:\genesis\Product\Lib\RMI.py", line 1779, in _genericInvocation
    reply = self._requestReply( replyBit, (method_name, args, kw) )
  File "C:\genesis\Product\Lib\RMI.py", line 1585, in _requestReply
    reply = self._receive()
  File "C:\genesis\Product\Lib\RMI.py", line 1677, in _receive
    raise ServerReplyTimeout( self.reply_timeout)
ServerReplyTimeout: 300


Regards,
Wah Meng

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              Timeout when calling COM objects on Windows Wong Wah Meng-R32813 <r32813@freescale.com> - 2011-12-23 11:20 +0000
              Re: what does 'a=b=c=[]' do Michael Torrie <torriem@gmail.com> - 2011-12-23 10:23 -0700
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