Cannot use MS Office objects, importing the MSO tlb fails

[chrullrich]

Hello,

while generating the Python type library equivalents for the MS Office object model (for x86) has always been a bit fragile, it appears that it does not work at all now, at least with Python 3.8 (not sure about recent 3.7s). The symptom is

TypeError: item 1 in _argtypes_ passes a union by value, which is unsupported.

This happens with methods on various interfaces (probably randomized by a dictionary hash somewhere). The common factor between all of them is that they have a VARIANT argument, and VARIANT is a union, of course.

I think the reason that it now fails reliably is the recent fix for https://bugs.python.org/issue16575.

Is there some way to work around this limitation, other than using pywin32 instead?

[mrginglymus]

This has been reverted in python for now: https://github.com/python/cpython/pull/17960

[junkmd]

@chrullrich @mrginglymus

If the issue remains, please re-open.