Srinivas Iyyer wrote:
> Hello group:
>
> I have a list t and the elements are tab limited.
> there are 2 columns:
>
>>>>t
>
> ['STAG2\tmiR-101', 'SMARCA1\tmiR-101',
> 'RAP2C\tmiR-101', 'DDX3Y\tmiR-101',
> 'AGRN\tmiR-101\tmiR-144', 'EPB41\tmiR-101\tmiR-144',
> 'PUM1\tmiR-101\tmiR-144',
> 'KIAA1573\tmiR-101\tmiR-144',
> 'ST6GALNAC3\tmiR-101\tmiR-144',
> 'CAPZA1\tmiR-101\tmiR-144']
>
>>>>for i in t:
>
> i = i.strip('')
> cols = i.split('\t')
> print cols[2]
>
> Traceback (most recent call last):
> File "<pyshell#527>", line 4, in -toplevel-
> print cols[2]
> IndexError: list index out of range
> When I try to Print column 2 (0,1,2 which is miR-144)
> elements why is it saying index out of range whern
> miR-144 is already there.
Because not every row has three columns, some just have two. Since the first
row only has two columns it gets an error and nothing is printed. You can test
for this:
cols = i.split('\t')
if len(cols) > 2:
print cols[2]
Kent
--
http://www.kentsjohnson.com
_______________________________________________
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
