problems with python: pywintypes.com_error
mhammond at skippinet.com.au
Sat Aug 9 04:08:44 CEST 2003
Matt Smith wrote:
> I am calling a program called v2wreg (its a program for interfacing
> with the registers/parallel port, used, unfortunatly i think
> exclusivly, by the company I work for), I can load the program fine,
> but when I come to use any of its advanced featurs i.e.
> SetDeviceAddress or ReadRegister I get the same type of error message.
> File "<COMObject v2wreg.Application>", line 2, in MakeConnection
> pywintypes.com_error: (-2147352571, 'Type mismatch.', None, 1)
These generally mean you are passing the incorrect param types to the
object. It is the object complaining, not Python.
Some things look a little suspect - eg:
serialBusToolv2wReg.SetDeviceAddress = self.deviceAddress
It is likely this should be written as:
serialBusToolv2wReg.DeviceAddress = self.deviceAddress
If you still have trouble, you should try reducing it down to no more
than 5 lines of Python that demonstrates the problem, and the equivilent
VB/Anything code that works.
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