I'm running a Windows service with Twisted (xmlrpc), and I've run into
an odd case.
In a recently implemented method, I create a COM object with
win32com.client.Dispatch (using a COM DLL that's part of the overall
application) and make a couple of calls on it, getting a return value.
This works well, except that the COM object calls a web service, which
can take a few seconds, so I wanted to defer it.
When I isolate it into a function, and call that with deferToThread, the
thread appears to die. I tried putting the Dispatch call in the
mainline, then passing it to the function -- this kills Python (not too
surprising really).
I'm also using dbapi, so I tried it using runInteraction, with no better
luck.
For what it's worth, here's the code:
> command = Dispatch('APTAuthorize.clsAuthorizeBatch')
> model = command.SetupFromConnParms(db['DSN'], db['UserName'],
> db['Password'])
> # The returned value is a tuple: the model followed by the params
> model = model[0]
> model.PaymentAdjustment = "P"
> model.BatchId = rsltDict['lPaymentBatchId']
> model.ShowProgress = True
> model.AuthorizationType = "CCD"
> command.Execute(SecurityCode)
Putting logging statements in, I found that it died during the first
call to "command". (With no error message or other indication.)
Any thoughts or useful information appreciated,
--
Don Dwiggins
Advanced Publishing Technology
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