aahz at pythoncraft.com (Aahz) writes: > >for k in domains_white(): > > if k in domains_black: > > del domains_black[k] > > Didja try that before posting?.... (I see at least two errors.) Oops, editing error (I removed 'keys' which is no longer needed, but forgot to remove the parentheses). No I didn't try it first. What's the second error?