[ZODB-Dev] bug in slicing keys of BTrees

[Andreas Jung]

Python passes 0 and MAX_INT to the __getslice__() method of BTreeItems.
Since the method does not check this special condition, it raises an
KeyError.

-aj


----- Original Message -----
From: "Steve Alexander" <steve@cat-box.net>
To: <zodb-dev@zope.org>
Sent: Saturday, May 18, 2002 15:18
Subject: [ZODB-Dev] bug in slicing keys of BTrees


> I've found this odd bug in the BTrees that is with Zope 3.
>
> I haven't verified it yet for the Zope2 version (if that is different).
>
>  >>> from Persistence.BTrees import OOBTree
>  >>> b=OOBTree.OOBTree({'a':1})
>  >>> b.keys()
> <OOBTreeItems object at 0x81557c8>
>  >>> b.keys()[:]
> Traceback (most recent call last):
>    File "<stdin>", line 1, in ?
> IndexError: 2147483647
>  >>> [i for i in b.keys()]
> ['a']
>  >>>
>
>
> --
> Steve Alexander
>
>
>
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