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'] >>> x = [] >>> y = [] >>> for m in test: ... cols = m.split('\t') ... x.append(cols[0]) ... y.append(cols[1]) ... >>> x ['10', '16', '25', '45', '55', '61', '75'] >>> y ['15', '20', '35', '50', '60', '65', '80'] >>> for m in range(0,6): ... k = m+1 ... if int(x[k])-int(y[m])==1: ... print x[m]+'\t'+y[k] ... else: ... print x[m]+'\t'+y[m] ... 10 20 16 20 # This is unwanted ##### 25 35 45 50 55 65 61 65# This is unwanted ##### 75 80 # IS MISSING from result### 16-20 and 61-65 is unwanted, to get rid of these I am doing these. My desired result: 10 20 25 35 45 50 55 65 75 80 If I consider the length of the list: >>> for m in range(0,7): ... k = m+1 ... if int(x[k])-int(y[m])==1: ... print x[m]+'\t'+y[k] ... else: ... print x[m]+'\t'+y[m] ... 10 20 16 20 25 35 45 50 55 65 61 65 Traceback (most recent call last): File "<stdin>", line 3, in ? IndexError: list index out of range How can I avoid 16-20 and 61-65 and get 75-80 in the result. Also, is there any easy way to do this. Thanks --- Bob Gailer <[EMAIL PROTECTED]> wrote: > Srinivas Iyyer wrote: > > Dear group: > > > > I have a data like this: > > 10 15 > > 16 20 > > 25 35 > > 45 50 > > 55 60 > > 61 65 > > 75 80 > > > > Since 15 precedes 16, I want to consider 10:20 as > one > > unit. If I repeat completely for data > > > > I would get: > > 10 20 > > 25 35 > > 45 50 > > 55 65 > > 75 80 > > > > test = ['10\t15', '16\t20', '25\t35', '45\t50', > > '55\t60', '61\t65', '75\t80'] > > > > > > I cannot think a way to do this in simple. Could > > members suggest some way to solve this please. > > > I assume by "precedes" you mean is one-less-than. To > test this you > should convert the strings into integers. Since the > numbers come in > pairs each pair must be split at the \t (using > split), then convert each > number to integer (using int). > > Hope that's enough to get you started. > > -- > Bob Gailer > 510-978-4454 > > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor