On Tue, Jul 23, 2013 at 9:12 PM, Christian Tismer <tis...@stackless.com> wrote: ... > What I'm after is a way to over-ride the implementation by user code. > I did not yet check it this is implemented already, in the Python way of > sub-classing built-ins.
BTrees (somewhet to mysurprise, do support subclassing, although you'll need to write custom __getstate__ and __setstate__ methods to handle both the BTree data and instance data. It would be better if the methods provided by the BTree classes handled this automatically (by checking for an instance dictionary or slots). Also, the BTree implementation isn't informed by user provided attributes. It would be better if it was. For example. I'd like bucket and internal node sizes to be controllable via instance attributes (typically defined in a subclass. Jim -- Jim Fulton http://www.linkedin.com/in/jimfulton _______________________________________________ For more information about ZODB, see http://zodb.org/ ZODB-Dev mailing list - ZODB-Dev@zope.org https://mail.zope.org/mailman/listinfo/zodb-dev
