[python-win32] Exception setting a string using COM

[Aleksandr VLADIMIRSKIY]

Hello,

I'm attempting to set a string value using a COM interface to an application. I get the following traceback. Could anyone help me understand the nature of the error or how I might begin to discover it?

Thank you,

Aleksandr

Code and traceback:

In [2]: from win32com.client import Dispatch

In [3]: eApp = Dispatch("ExpressionMedia.Application")

In [4]: catalog = eApp.ActiveCatalog

In [5]: selection = catalog.Selection

In [6]: item = selection[0]

In [7]: path = item.Path

In [8]: path
Out[8]: u'E:\\Images\\Events\\Alumni and Student\\BEIA formerly DEAA\\2008\\Awards dinner CD 01\\DSC_0009.JPG'

In [9]: path = ""

In [10]: path
Out[10]: ''

In [11]: item.Path = ""
---------------------------------------------------------------------------
pywintypes.com_error                                 Traceback (most recent call last)

C:\<ipython console>

c:\python24\lib\site-packages\win32com\client\__init__.py in __setattr__(self, attr, value)
    461                 except KeyError:
    462                         raise AttributeError, "'%s' object has no attribute '%s'" % (repr(self), attr)
--> 463                 self._oleobj_.Invoke(*(args + (value,) + defArgs))
    464         def _get_good_single_object_(self, obj, obUserName=None, resultCLSID=None):
    465                 return _get_good_single_object_(obj, obUserName, resultCLSID)

com_error: (-2147352567, 'Exception occurred.', (0, None, None, None, 0, -2147467259), None)

In [12]: