On Sun, Jun 06, 2010 at 07:52:43PM +1000, Lie Ryan wrote: > >>> re.sub('(one) (two)', r'\g<0> - \1 \2',s) > > the \g<number> is equivalent to \number but is intended to ambiguate > cases like "\g<2>0" vs. "\20". It happens that \g<0> refers to the > entire group. Thanks a lot. It works as you say. With warm regards, -Payal --