Am 21.06.2010, 11:55 Uhr, schrieb Nitro <nitro at dr-code.org>: > Hello, > > The simple code below gives me a POSKeyError. Is this to be expected? Searched the bugtracker, it looks pretty much like this issue: https://bugs.launchpad.net/zodb/+bug/143560 https://mail.zope.org/pipermail/zodb-dev/2005-November/009419.html -Matthias