prompt: kill matchflags Python already lets one to embed RE flags directly in a regex, which is a much nicer way to do things: (?iLmsux) (One or more letters from the set "i", "L", "m", "s", "u", "x".) ... matchflags was introduced in 67afecb8d6cc, and the record extension is the only user. I've killed matchflag, and adjusted record code appropriately.