Module Products.BTreeFolder2.BTreeFolder2, line 335, in has_key
AttributeError: 'NoneType' object has no attribute 'has_key'

What can I do?

How about an external method?

def run(self):
    from BTrees.OOBTree import OOBTree
    setattr(obj, '_tree' , OOBTree())
    obj._p_changed = 1
    return 'done'

That will fix the None _tree variable. You may encounter a few other problems as well. Good luck!

Hedley

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