Hi Sean, On Sat, 18 May 2002 10:46:19 -0700 (PDT) "Sean 'Shaleh' Perry" <shalehperry at attbi.com> wrote: > you are very close to what you need. > > rule = re.compile(r'^\d{6}$') # ^ means start of string, then \d{6} is 6 > numbers > # then $ is end of string. Thank you very much. But what does the 'r' in (r'^\d{6}$') means? --bk