[ZODB-Dev] RE: B-Tree API - again!

[Jeremy Hylton]

>>>>> "ML" == Magnus Lycka <magnus@thinkware.se> writes:

  >>>> class x(BTrees.OOBTree.OOBTree):
  ML> ...  pass ...
  >>>> a = x() a[1] = 1 del a[1]
  ML> Traceback (most recent call last):
  ML>    File "<interactive input>", line 1, in ?
  ML> AttributeError: __delitem__

  ML> Is there are a good explanation for this?

  ML> Why is it that OOBTree doesn't have a __delitem__ but "del
  ML> tree[x]" still works!

I figure it must have something to do with ExtensionClass.

Jeremy