I have a very simple COM server written in Python that is trying to
return a two-dimensional array 268 x 20. The values it contains are
some small integers, some short (<29 character) Unicode strings, and
None.
To isolate the problem I have taken out the code that builds the
matrix from real data, and just substituted a literal tuple of tuples,
like this:
class AtlasSecurity:
_reg_progid_ = 'Arena.Security '
...
def GetProfileCompo nentMatrixEx(se lf):
# self.BuildMatri x()
self.matrix = ((u'ID', u'Name', u'Type', .... ),
... )) # a 268-tuple of 20-tuples
self.last_resul t = (self.matrix,)
return self.last_resul t
Because I was having trouble calling it from Excel ("the server has
disconnected from its clients"), to see what was going on I decided to
call it from a Python client, like this:
from win32com.client import Dispatch
x = Dispatch("Arena .Security")
print x.GetProfileCom ponentMatrixEx( )
This blows up in python22.dll with a C++ Runtime abort(), no matter
what I try. I can write a method that I can call 268 times to return
the data one 20-element vector at a time. This works, but is really
only good for simple data structures and I need this to work with
structures of arbitrary complexity and levels of nesting.
Is there a restriction on the size or complexity of the SafeArray that
pythoncom is constructing from the returned value? Or what else am I
doing wrong?
(I am using Python 2.2 because I am working with embedded Python and
that is the version that is embedded.)
