Re: Flush stdin

References	<CAGGBd_r7tdPc1ZTA380-9aNRnbr6Dm3HzhG2cCH2sJwWn=c5iQ@mail.gmail.com> <mailman.14990.1413777392.18130.python-list@python.org> <87a94rgxi5.fsf@elektro.pacujo.net> <CAGGBd_qsZ=-8sn0YQPT1XQf9Qcn9cJ4Aw=hgR6=at0KzjN3xsg@mail.gmail.com>
Date	2014-10-20 15:52 -0700
Subject	Re: Flush stdin
From	Dan Stromberg <drsalists@gmail.com>
Newsgroups	comp.lang.python
Message-ID	<mailman.15012.1413845578.18130.python-list@python.org> (permalink)

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If I run the following in one tty:
    nc -l localhost 9000 | /tmp/z

...where /tmp/z has just:
    #!/usr/bin/python3

    import sys

    for line in sys.stdin.buffer:
        print(line)

And then run the following in another tty on the same computer:
    while read line; do echo $line; sleep 1; done < /etc/passwd | nc
localhost 9000

...then everything acts line buffered, or perhaps even character
buffered (the two are pretty indistinguishable in this test).  What I
see is my /etc/passwd file popping out of the nc -l side, one line at
a time, each line one second apart.

I suppose this suggests that it's the client that's sending TCP data
that is buffering.

That, or we're using two different versions of netcat (there are at
least two available).

Thread

Re: Flush stdin Cameron Simpson <cs@zip.com.au> - 2014-10-20 14:56 +1100
  Re: Flush stdin Marko Rauhamaa <marko@pacujo.net> - 2014-10-20 07:45 +0300
    Re: Flush stdin Dan Stromberg <drsalists@gmail.com> - 2014-10-20 14:59 -0700
      Re: Flush stdin Marko Rauhamaa <marko@pacujo.net> - 2014-10-21 01:54 +0300
    Re: Flush stdin Dan Stromberg <drsalists@gmail.com> - 2014-10-20 15:52 -0700
      Re: Flush stdin Marko Rauhamaa <marko@pacujo.net> - 2014-10-21 02:18 +0300
        Re: Flush stdin Dan Stromberg <drsalists@gmail.com> - 2014-10-20 17:30 -0700
          Re: Flush stdin Marko Rauhamaa <marko@pacujo.net> - 2014-10-21 07:41 +0300
            Re: Flush stdin Dan Stromberg <drsalists@gmail.com> - 2014-10-21 16:16 -0700
              Re: Flush stdin Marko Rauhamaa <marko@pacujo.net> - 2014-10-22 08:38 +0300
                Re: Flush stdin Chris Angelico <rosuav@gmail.com> - 2014-10-22 17:23 +1100
              Re: Flush stdin Marko Rauhamaa <marko@pacujo.net> - 2014-10-22 13:57 +0300
            Re: Flush stdin random832@fastmail.us - 2014-10-22 11:01 -0400
              Re: Flush stdin Marko Rauhamaa <marko@pacujo.net> - 2014-10-22 18:28 +0300

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