[Milo Thurston <nospam / linacreschoolofdefence.org>, 2004-10-07 15.04 CEST]
> > while idx = dust_seq.index /N+/, idx
> 
> Thanks - the interpreter didn't like this line, though.

You are right, it should have parens:

	while idx = dust_seq.index(/N+/, idx)

Strange...