[Jeremy Hylton] > I don't know if there is any documentation for BTree, I don't know of any dcos for (the old) BTree either.
> so the code will need to be your guide. I checked the code and each of > the BTree types does support items(). So walk over the database, find > each top-level BTree object, extract its items, put them in a new > BTrees-style BTree, then save that in place of the old object. Then it may not be necessary to extract the items -- a constructor for a BTrees-style BTree object: /** ** Accepts a sequence of 2-tuples, or any object with an items() ** method that returns an iterable object producing 2-tuples. */ IOW, the constructor should invoke .items() for you -- just pass it the old-style BTree. Of course this has to be done under a version of ZODB that still *has* old-style BTree support! I don't know whether the old-style BTree comes in different type-dependent flavors, either. If not, an old BTree should probably become a new OOBTree, and an old IntSet a new IISet. _______________________________________________ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )