[python-win32] Python and LabView over COM? (again)
Mark Hammond
mhammond at skippinet.com.au
Thu Apr 21 13:36:51 CEST 2005
> I found an old thread in a python-list that discusses the
> same problem.
> http://mail.python.org/pipermail/python-list/2003-February/150857.html
>
> If I try the advice to use EnsureDispatch I get following error:
> File "ExportVIStrings.py", line 19, in ?
>
> app=win32com.client.gencache.EnsureDispatch("LabVIEW.Application.7")
> File
> "C:\Python22\Core\lib\site-packages\win32com\client\gencache.py",
> line 434, in EnsureDispatch
> disp_class = CLSIDToClass.GetClass(str(disp_clsid))
> File
> "C:\Python22\Core\lib\site-packages\win32com\client\CLSIDToClass.py",
> line 50, in GetClass
> return mapCLSIDToClass[clsid]
> KeyError: {9A872071-0A06-11D1-90B7-00A024CE2744}
>
> Are there some changes in win32com for Py23 or Py24 so that
> the problem
> could be fixed?
> How can I try to debug the dynamic.py to find the reason for
> the crashes
> and strange behavior?
Sorry to give such little info and send you fishing, but this sounds similar
to the problem we had with Lotus Notes in the early days - adding "lotus
notes" to your search may dig up more than you want to know :)
Try something like:
mod = gencache.EnsureModule(...)
app = mod.Application()
For the exact spelling of the first line, run "makepy.py -i" and select the
LabView typelib.
For the second line, ".Application()" may not be correct, but given your
example (LabVIEW.Application.7), I suspect it is. Examine the generated .py
file - 'mod' is that module.
Cheers,
Mark
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