[Zope-dev] [BUG] maybe yet unknown BTREES bug

[Chris McDonough]

Tim has fixed lots of bugs in the BTrees code since 2.5.1.  Also, there
were cases in the Transience implementation where I was iterating over
the .keys()/.items()/.values() of an OOBTree or IOBTree and also
mutating its contents, which is disastrous.  Is this one of those cases?

On Fri, 2003-01-24 at 03:13, Dieter Maurer wrote:
> Attention: cross post
> 
> We have run in an apparent "BTrees" bug (with the "BTrees" version
> included in Zope 2.5.1).
> 
>    We try to insert a value into an "BTrees.OOBTree.OOBTree" instance
>    with 
> 
> 	tree[k]= v
> 
>    and get an "exceptions.KeyError on 13384379A0pfvqTmtEQ".
> 
>    The code comes from Zope's "Transience" implementation.
>    The reported key is some session key. We are not yet
>    sure, however, whether it is the key we are just trying
>    to insert.
> 
> 
> Reading the "News.txt" of ZODB-3.2a1, this bug may not yet
> be known.
> 
> 
> We will install the "BTrees" package from ZODB-3.2a1 and
> see whether the problem disappears.
> I will report back...
> 
> 
> Dieter
> 
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