George and Iain - Thanks for your help!!! It worked for me, and that book seems to be really useful =) A.D
On Wed, 2005-09-28 at 11:16 -0400, George Sakkis wrote: > "Amy Dillavou" <[EMAIL PROTECTED]> wrote in message > news:[EMAIL PROTECTED] > > Can someone help me with understanding how python uses backreferences? > > I need to remember the item that was last matched by the re engine but i > > cant seem to understand anything that I find on backreferences. if I > > want to access the last match do i use \number or is there something > > else i have to do? > > > > heres part of my code: > > renDate = re.compile("$((\d){4}-(\d){2}-(\d){2}))") > > renDate.search(l) > > if(exist.search(l) and str(lastmodDate) < \1): #i need help here with \1 > > > > Thanks in advance > > A.D > > renDate = re.compile(some_regex) > match = renDate.search(input) > if match and str(lastmodDate) < match.group(1): > do_something() > > > HTH, > George > > -- http://mail.python.org/mailman/listinfo/python-list