We experienced crash of Python interpreter on exit or on exception catching in presence of subclassing.

There were several reasons and finally I got scripts runing. But it was impossible to strip the case down to small example. So my notes:

you should not define Python class with same name as C# class that was imported before
do not import C# classes to global python namespace - always import to separate namespace with import ... as ...
the sequence of importing and class definitions seems could lead to crash or success. Big mystery for me...
I had defined python class in a module that was derived from C# interface like

import X.Y.Z.Prototype as Prototype
class Adapter(Prototype.IControl):
    __namespace__ = "X.Y.Z.Prototype" 
    def __init__(self, param = None):

The code in .cs was:

namespace X.Y.Z.Prototype
{
    public interface IControl
    {
...

The definition above works. But changing __namespace__ python class attribute to non-existing name lead to crash of python interpreter (at exit in cleaning up modules in 3 of 5 attempts by executing script with "python myscript.py").
Alternatively starting python interpreter manually and importing python module in console by typing "import Adapter as ..." and then typing "exit()" leaded to crash. But again: can't repro in small example.

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