Tim Golden schrieb:
> [Thomas Heller]
>
> [... snip problems with py2exe & WMI ...]
>
> | The OP of the thread Tim mentions here already had a solution, if I
> | understood him correctly, and the other things that were suggested
> | didn't work. Basically, IIUC, he did add the typelib
> | wrappers from the
> | 'other' windows version manually to the library.zip file.
> |
> | Totally different solutions would be:
> | - change Tim's wmi.py module so that it works with dynamic
> | binding (no
> | typelib wrappers needed)
> | or
>
> Well, if it helps, there's a version of the WMI module
> that uses dynamic binding on my site:
>
> http://timgolden.me.uk/python/downloads/wmi-0.6a.py
>
> I've hardcoded the relevant constants (which is pretty
> much all I was using early binding for) and replaced
> any other EnsureDispatch calls with simple Dispatch.
It may be dangerous since the constants may or may not be the same on
different versions, at least in theory. I've appended a small module
which allows to bind constants from the type library at runtime.
Not much error checking, but you may get the idea. I'll leave providing
a proper patch for pywin32, if it makes sense, to those that have more
time ;-)
> Does anyone want to give it a try to let me know if
> it helps? I don't use py2exe myself.
The simple test case I have works on XP (I don't use wmi myself, except
as sample for py2exe).
Thomas
# constants.py
class ProvideConstants(object):
"""A class which, when called on a win32com.client.Dispatch object,
provides lazy access to constants defined in the typelib.
They can be accessed as attributes of the _constants property."""
def __init__(self, comobj):
comobj.__dict__["_constants"] = self
# Get the typelibrary's typecomp interface
self.__typecomp = \
comobj._oleobj_.GetTypeInfo().GetContainingTypeLib()[0].GetTypeComp()
def __getattr__(self, name):
if name.startswith("__") and name.endswith("__"):
raise AttributeError, name
result = self.__typecomp.Bind(name)
# Bind returns a 2-tuple, first item is TYPEKIND,
# the second item has the value
if not result[0]:
raise AttributeError, name
return result[1].value
if __name__ == "__main__":
from win32com.client import Dispatch
d = Dispatch("WbemScripting.SWbemLocator")
ProvideConstants(d)
print d._constants.wbemImpersonationLevelAnonymous
print d._constants.wbemImpersonationLevelDelegate
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