Given a file:
#### t.txt ####
1 2
1 1
3 1
### end of file ###
file = open('t.txt', 'r')
for i, line in enumerate(file):
print "Line:", i, "Text:", line
would give the result:
Line: 0 Text: 1 2
Line: 1 Text: 1 1
Line: 2 Text: 3 1
To check the third character in each line:
for line in file:
if (line != '') and (len(line) > 2):
if line[2] == '1':
print "Got line:", line
Would give:
Got line: 1 1
Got line: 3 1
Cheers,
Wesley Brooks
On 02/10/2007, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> Hi!
> I'm a new user of python, and have problem.
> I have a plain ascii file:
> 1aaaaaaaaaaaa1......1
> 1cccccccccccc2......1
> 1xxxxxxxxxxxx1......1
> I want to create a new file which contains only lines with '1' on 15th
> position.
> I've tried this:
>
> import string
> f=open('/test/test.asc','r')
> o=open('/test/out.asc','w')
> for line in f:
> s= f.readline()
> if s[15]=='1' :
> o.write(s)
> o.close()
> f.close()
>
> Why it doesn't work ('s' contains ' ' )?
>
> piotr
>
> --
> http://mail.python.org/mailman/listinfo/python-list
>
--
http://mail.python.org/mailman/listinfo/python-list
