Srinivas Iyyer wrote: > Thank you Bob for your email. > Sorry for the confusion. > here is what I ment: > > test = ['10\t15', '16\t20', '25\t35', '45\t50', > '55\t60', '61\t65', '75\t80']
>>> I would get: >>> 10 20 >>> 25 35 >>> 45 50 >>> 55 65 >>> 75 80 Here is my take on it: test = ['10\t15', '16\t20', '25\t35', '45\t50','55\t60', '61\t65', '75\t80'] pairs = [ map(int, x.split('\t')) for x in test ] i = iter(pairs) last = i.next() for current in i: if current[0] == last[1]+1: last = [last[0], current[1]] else: print last last = current print last You can also wrap this in a generator which yields the desired pairs, so they can be printed or put in a list or whatever: def compress(pairs): i = iter(pairs) last = i.next() for current in i: if current[0] == last[1]+1: last = [last[0], current[1]] else: yield last last = current yield last for pair in compress(pairs): print pair Kent _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor