Need help with a program

[nn]

Johann Spies wrote:
> On Thu, Jan 28, 2010 at 07:07:04AM -0800, evilweasel wrote:
> > Hi folks,
> >
> > I am a newbie to python, and I would be grateful if someone could
> > point out the mistake in my program. Basically, I have a huge text
> > file similar to the format below:
> >
> > AAAAAGACTCGAGTGCGCGGA	0
> > AAAAAGATAAGCTAATTAAGCTACTGG	0
> > AAAAAGATAAGCTAATTAAGCTACTGGGTT	 1
> > AAAAAGGGGGCTCACAGGGGAGGGGTAT	 1
> > AAAAAGGTCGCCTGACGGCTGC	0
>
> I know this is a python list but if you really want to get the job
> done quickly this is one method without writing python code:
>
> $ cat /tmp/y
> AAAAAGACTCGAGTGCGCGGA   0
> AAAAAGATAAGCTAATTAAGCTACTGG     0
> AAAAAGATAAGCTAATTAAGCTACTGGGTT   1
> AAAAAGGGGGCTCACAGGGGAGGGGTAT     1
> AAAAAGGTCGCCTGACGGCTGC  0
> $ grep -v 0 /tmp/y > tmp/z
> $ cat /tmp/z
> AAAAAGATAAGCTAATTAAGCTACTGGGTT   1
> AAAAAGGGGGCTCACAGGGGAGGGGTAT     1
>
> Regards
> Johann
> --
> Johann Spies          Telefoon: 021-808 4599
> Informasietegnologie, Universiteit van Stellenbosch
>
>      "My son, if sinners entice thee, consent thou not."
>                             Proverbs 1:10

I would rather use awk for this:

awk 'NF==2 && $2!~/^0$/ {printf("seq%s\n%s\n",NR,$1)}' dnain.dat

but I think that is getting a bit off topic...