Re: when does newlines get set in universal newlines mode?

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From	Ian Kelly <ian.g.kelly@gmail.com>
Date	Mon, 4 May 2015 09:33:50 -0600
Subject	Re: when does newlines get set in universal newlines mode?
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On Mon, May 4, 2015 at 9:17 AM, Peter Otten <__peter__@web.de> wrote:
> OK, you convinced me. Then I tried:
>
>>>> with open("tmp.txt", "wb") as f: f.write("0\r\n3\r5\n7")
> ...
>>>> assert len(open("tmp.txt", "rb").read()) == 8
>>>> f = open("tmp.txt", "rU")
>>>> f.readline()
> '0\n'
>>>> f.newlines
>>>> f.tell()
> 3
>>>> f.newlines
> '\r\n'
>
> Hm, so tell() moves the file pointer? Is that sane?

If I call readline() followed by tell(), I expect the result to be the
position of the start of the next line. Maybe this is considered safe
because tell() on a pipe raises an exception?

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when does newlines get set in universal newlines mode? arekfu@gmail.com - 2015-05-04 02:50 -0700
  Re: when does newlines get set in universal newlines mode? Peter Otten <__peter__@web.de> - 2015-05-04 14:01 +0200
  Re: when does newlines get set in universal newlines mode? Chris Angelico <rosuav@gmail.com> - 2015-05-04 22:13 +1000
    Re: when does newlines get set in universal newlines mode? Davide Mancusi <arekfu@gmail.com> - 2015-05-04 06:35 -0700
      Re: when does newlines get set in universal newlines mode? Terry Reedy <tjreedy@udel.edu> - 2015-05-04 13:38 -0400
    Re: when does newlines get set in universal newlines mode? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-05-05 18:31 +1000
      Re: when does newlines get set in universal newlines mode? Chris Angelico <rosuav@gmail.com> - 2015-05-05 18:41 +1000
        Re: when does newlines get set in universal newlines mode? Davide Mancusi <arekfu@gmail.com> - 2015-05-05 02:23 -0700
          Re: when does newlines get set in universal newlines mode? Chris Angelico <rosuav@gmail.com> - 2015-05-05 19:28 +1000
            Re: when does newlines get set in universal newlines mode? Davide Mancusi <arekfu@gmail.com> - 2015-05-05 03:58 -0700
  Re: when does newlines get set in universal newlines mode? Peter Otten <__peter__@web.de> - 2015-05-04 17:17 +0200
  Re: when does newlines get set in universal newlines mode? Chris Angelico <rosuav@gmail.com> - 2015-05-05 01:26 +1000
  Re: when does newlines get set in universal newlines mode? Ian Kelly <ian.g.kelly@gmail.com> - 2015-05-04 09:33 -0600

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