"Thomas Heller" <theller at python.net> wrote in message news:anvbm0$hu6gd$1 at ID-59885.news.dfncis.de... > Google is your friend: > > http://www.google.de/search?q=python+metaclasses OK. I found PEP252 and 253. I didn't know metaclasses are new to Python2.2 and expected to find something in Data Model section of Language Reference. Stach