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Groups > comp.lang.python > #104264

Re: Pythonic love

Newsgroups comp.lang.python
Date 2016-03-07 15:03 -0800
References <nbl0lo$5o5$1@gioia.aioe.org>
Message-ID <ecc1c55f-4d49-4eb0-9f53-4679911e2434@googlegroups.com> (permalink)
Subject Re: Pythonic love
From sohcahtoa82@gmail.com

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On Monday, March 7, 2016 at 2:51:50 PM UTC-8, Fillmore wrote:
> learning Python from Perl here. Want to do things as Pythonicly as possible.
> 
> I am reading a TSV, but need to skip the first 5 lines. The following 
> works, but wonder if there's a more pythonc way to do things. Thanks
> 
> ctr = 0
> with open(prfile,mode="rt",encoding='utf-8') as pfile:
>      for line in pfile:
>          ctr += 1
> 
>          if ctr < 5:
>              continue
> 
>          allVals = line.strip().split("\t")
>          print(allVals)

I'd read all the lines at once and then just slice the list.

with open(prfile, mode="rt", encoding="utf-8") as pfile:
    lines = pfile.readlines()[5:]
    for line in lines:
        allVals = line.strip().split("\t")
        print(allVals)

Obviously, this will only work well if your file is a reasonable size, as it will store the entire thing in memory at once.

On a side note, your "with open..." line uses inconsistent quoting.  You have "" on one string, but '' on another.

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Thread

Pythonic love Fillmore <fillmore_remove@hotmail.com> - 2016-03-07 17:51 -0500
  Re: Pythonic love Rob Gaddi <rgaddi@highlandtechnology.invalid> - 2016-03-07 22:52 +0000
  Re: Pythonic love sohcahtoa82@gmail.com - 2016-03-07 15:03 -0800
    Re: Pythonic love Fillmore <fillmore_remove@hotmail.com> - 2016-03-07 18:12 -0500
  Re: Pythonic love Ian Kelly <ian.g.kelly@gmail.com> - 2016-03-07 16:13 -0700
  Re: Pythonic love Mark Lawrence <breamoreboy@yahoo.co.uk> - 2016-03-07 23:19 +0000
  Re: Pythonic love jmp <jeanmichel@sequans.com> - 2016-03-08 14:25 +0100
  Re: Pythonic love justin walters <walters.justin01@gmail.com> - 2016-03-08 08:49 -0800
  Re: Pythonic love Mark Lawrence <breamoreboy@yahoo.co.uk> - 2016-03-08 16:55 +0000
  Re: Pythonic love jmp <jeanmichel@sequans.com> - 2016-03-08 18:00 +0100
  Re: Pythonic love justin walters <walters.justin01@gmail.com> - 2016-03-08 09:17 -0800
    Re: Pythonic love jstitch@invernalia.homelinux.net (Javier Novoa C.) - 2016-03-08 11:27 -0600
      Re: Pythonic love Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2016-03-08 21:10 -0500

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