Thane, I figured out the problem.. it turns out that I had an old version of the DLL in the GAC (and at one point an old one copied to the Python.Net directory).. when I updated the GAC (and deleted the one in the Python.Net directory) I was able to successfully initialize the Set object. Thanks for looking into this. I wouldn't have figured it out if you hadn't shown it working on your box! Sean --- Thane <thane@magna-capital.com> wrote:

Code is good. See output below. I suspect that Python.NET can't see something...

I'll keep playing with it and try to duplicate your error.

--Thane

----------- PYTHON OUTPUT ----------------- Python 2.3.2 (#49, Oct 2 2003, 20:02:00) [MSC v.1200 32 bit (Intel)] on win32 Type "copyright", "credits" or "license" for more information.

...

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Running initialization script, please stand by... import CLR.nltk from CLR.nltk import Set dir(Set) ['__doc__', '__name__'] from CLR.nltk.Set import Set dir(Set) ['Equals', 'Finalize', 'GetHashCode', 'GetType', 'MemberwiseClone', 'ReferenceEquals', 'ToString', '__and__', '__call__', '__class__', '__cmp__', '__contains__', '__delattr__', '__delitem__', '__doc__', '__eq__', '__getattribute__', '__getitem__', '__hash__', '__init__', '__iter__', '__len__', '__module__', '__new__', '__or__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__setitem__', '__str__', '__sub__', 'contains', 'copy', 'count', 'dict', 'difference', 'elements', 'f_measure', 'intersection', 'precision', 'recall', 'union'] a = Set(1) Traceback (most recent call last): File "<console>", line 1, in ? TypeError: no constructor matches given arguments a = Set([1,2]) a <CLR.nltk.Set.Set object at 0x072A7BD0> b = Set([5,3,2,1]) b <CLR.nltk.Set.Set object at 0x072A7D30> b.contains(3) True

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