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POError with python Comtypes CreateObject
 

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  1. POError with python Comtypes CreateObject
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    <p>I have a C# dll registered on COM which i am trying to use in Python code using comtypes , the code works perfectly fine in the machine i am developing the c# dll but fails to load when deployed in a different machine with all the required files .</p> <p>Here is the error i am getting</p> <pre><code>Traceback (most recent call last): File "C:\Python27\Lib\site-packages\bellagio\DriverManager\audiotest\apx525\apx525_Wrapper.py", line 257, in &lt;module&gt; c._Connect() File "C:\Python27\Lib\site-packages\bellagio\DriverManager\audiotest\apx525\apx525_Wrapper.py", line 51, in _Connect self.apx525 = CreateObject("APxWrapper.APxWrapper",None,None,apx.IAPxWrapper) File "C:\Python27\lib\site-packages\comtypes\client\__init__.py", line 235, in CreateObject obj = comtypes.CoCreateInstance(clsid, clsctx=clsctx, interface=interface) File "C:\Python27\lib\site-packages\comtypes\__init__.py", line 1145, in CoCreateInstance _ole32.CoCreateInstance(byref(clsid), punkouter, clsctx, byref(iid), byref(p)) File "_ctypes/callproc.c", line 936, in GetResult WindowsError: [Error -2147024894] The system cannot find the file specified </code></pre> <p>and the corresponding python code is </p> <pre><code>try: from comtypes.client import CreateObject,GetModule, Constants, GetEvents from comtypes import COMError GetModule("P:\\Share\\Test\\TestBed\\Bellagio\\dll\\APxWrapper.tlb") from comtypes.gen import APxWrapper as apx except: tblog.warnLog("Need to install comtypes package, AP driver not imported") class IAPxWrapper_Impl(object): def __init__(self): self.apx525 = None self.activeSignalPath = '' self.activeMeasurement = '' def _Connect(self): self.apx525 = CreateObject("APxWrapper.APxWrapper",None,None,apx.IAPxWrapper) self.apx525._GUIVisible = True; return True c = IAPxWrapper_Impl() c._Connect() </code></pre> <p>Note that the folder has 3 files ApxWrapper.tlb .APxWrapper.dll and a dependency dll . GetModule works fine and pyton files are generated in comtypes.gen folder Any hints on this highly appreciated</p> <p>Sanjay</p>
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