[Python.NET] Importing .NET assembly with "." (dot) in the name

[Mikhail Karmyshev]

Hello,
Sorry for possibly dumb question, but is it possible to import an assembly with "." (dot) in the name ?
Without dot, for example "SlimDX.dll" - AddReference works and import works too.
But for "Accord.Imaging.dll" - AddReference is OK, but import fails:
>>> import Accord.Imaging
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named Accord

Is there a workaround for this or am I doing something wrong?
Any help appreciated.
Mikhail