使用python 64位win32com（Solidworks-API）时发生异常：SldWorks.Application.InvokeTypes异常

Question

I have on my Windows Server 2003, Standard x64 Edition a 64 bit Python 2.7 (python-2.7.3.amd64.msi) and a 64 bit win32-Extension (pywin32-218.win-amd64-py2.7.exe). My Application is SolidWorks 2012 x64 Edition. Then I generate with

C:\Python27\Lib\site-packages\win32com\client\makepy.py "D:\Program Files\SolidWorks Corp\SolidWorks\sldworks.tlb" the file 83A33D31-27C5-11CE-BFD4-00400513BB57x0x20x0.py 

and with

C:\Python27\Lib\site-packages\win32com\client\makepy.py "D:\Program Files\SolidWorks Corp\SolidWorks\swconst.tlb" the file 4687F359-55D0-4CD3-B6CF-2EB42C11F989x0x20x0.py

My following code works fine on 32 bit Windowes XP with 32bit Python 2.4 and 32 bit win32-Extension. But on my 64 bit server I get an exception "SldWorks.Application.InvokeTypes" by call ExitApp()-method. What is the reason and how can I resolve this problem? Thanks for your hints, Thomas

 try:

        pythoncom.CoInitializeEx(pythoncom.COINIT_APARTMENTTHREADED)

        sldworks = gencache.EnsureModule('{83A33D31-27C5-11CE-BFD4-00400513BB57}', 0x0, 20, 0) 
        print "sldworks = " + str(sldworks)       
        swconst = gencache.EnsureModule('{4687F359-55D0-4CD3-B6CF-2EB42C11F989}', 0x0, 20, 0) 
        print "swconst = " + str(swconst)   


        sw = sldworks.ISldWorks(DispatchEx('SldWorks.Application'))  
        print "sw = " + str(sw)   

        sw.ExitApp() 

    except Exception, value:        
        print "Exception occured, value = ", value 

here the prints:

sldworks = module 'win32com.gen_py.83A33D31-27C5-11CE-BFD4-00400513BB57x0x20x0' from 'C:\Python27\lib\site-packages\win32com\gen_py\83A33D31-27C5-11CE-BFD4-00400513BB57x0x20x0.pyc'  

swconst = module 'win32com.gen_py.4687F359-55D0-4CD3-B6CF-2EB42C11F989x0x20x0' from 'C:\Python27\lib\site-packages\win32com\gen_py\4687F359-55D0-4CD3-B6CF-2EB42C11F989x0x20x0.pyc'        

sw = win32com.gen_py.SldWorks 2012 Type Library.ISldWorks instance at 0x82548360  

Exception occured, value = SldWorks.Application.InvokeTypes 

Answer 1

With

sw = win32com.client.Dispatch("SldWorks.Application")

instead

sw = sldworks.ISldWorks(DispatchEx('SldWorks.Application'))

and with Python 2.4 32bit and win32 extension 32bit it works fines.

Thomas

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