[python-win32] pythoncom warning: PyVARDESC

[Tim Golden]

Mark Hammond wrote:
>> Since release 211, I have dozens & dozens messages, like this:
>>
>> pythoncom warning: PyVARDESC ctor has unknown varkind (3) - returning
>> None
>> pythoncom warning: PyVARDESC ctor has unknown varkind (3) - returning
>> None
>> pythoncom warning: PyVARDESC ctor has unknown varkind (3) - returning
>> None
>> pythoncom warning: PyVARDESC ctor has unknown varkind (3) - returning
>> None
>>
>> No problem when I run my scripts. But, I don't understand the message
>> (the
>> worst: it is not even in French!).
>> If somebody has an explanation (easy to understand), thanks in advance.
> 
> It happens as part of the makepy generation process, apparently when
> processing the "default" value for params.  In b210 and earlier, when
> pythoncom saw a VARDESC it didn't understand, it silently returned None, but
> in b211, as you see, it generates a warning as it implies there is something
> pywin32 needs to fix (the *bad* think about such warnings is that there is
> nothing the person seeing the warning can do to resolve it other than ask
> about it, as you have done)
>  
> It appears we are hitting a VARKIND of VAR_DISPATCH.  Does it happen for you
> on any typelibs I'm likely to have installed?  Any idea what in your
> typelibs could cause this, so I can repro it in the test suite?

MAPI.Session definitely does this

TJG