[ZODB-Dev] Persistent class in python

[Микола Харечко]

Hi. I am trying to rewrite Persistent class to python. How can i write
python class that passes this tests (persistent.txt ):

Basic type structure
--------------------
  >>> Persistent.__dictoffset__
  0
  >>> Persistent.__weakrefoffset__
  0
  >>> Persistent.__basicsize__ > object.__basicsize__
  True

and at the same time - it will be possible to create weakreferences to
this class (in PickleCache). Also this class must not have __slots__
(__getstate__ method).

-- 
crchemist