Thanks for your help
My intention is to create matrix based on parsed csv file. So, I would
like to have a list of columns (which are also lists).
I have made the following changes and it still doesn't work.
cnt = 0
p=[[], [], [], [], [], [], [], [], [], [], []]
reader = csv.reader(file("f:\webserver\inp.txt"), dialect="excel",
quotechar="'", delimiter='\t')
for line in reader:
if cnt > 6:
break
j = 0
for col in line:
p[j].append(col)
j=j+1
cnt = cnt + 1
print p
Iain King wrote:
> Roman wrote:
> > I would appreciate it if somebody could tell me where I went wrong in
> > the following snipet:
> >
> > When I run I get no result
> >
> > cnt = 0
> > p=[]
> > reader = csv.reader(file("f:\webserver\inp.txt"), dialect="excel",
> > quotechar="'", delimiter='\t')
> > for line in reader:
> > if cnt > 6:
> > break
> > for col in line:
> > p[:0].append(str(col))
>
> What are you trying to do here? p[:0] returns a new list, of all the
> elements in p up to element 0 (which is of course the empty list),
> which is then appended to, but is not stored anywhere. If you want to
> insert str(col) then use p.insert
>
>
> Iain
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