Re: Flush stdin

Path	csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!feeds.phibee-telecom.net!newsfeed.xs4all.nl!newsfeed2a.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
Return-Path	<cameron@cskk.homeip.net>
X-Original-To	python-list@python.org
Delivered-To	python-list@mail.python.org
X-Spam-Status	OK 0.029
X-Spam-Evidence	'H': 0.94; 'S': 0.00; 'api': 0.11; 'python': 0.11; "wouldn't": 0.14; '>on': 0.16; 'discarded.': 0.16; 'flush': 0.16; 'from:addr:cs': 0.16; 'from:addr:zip.com.au': 0.16; 'from:name:cameron simpson': 0.16; 'message-id:@cskk.homeip.net': 0.16; 'received:211.29': 0.16; 'received:211.29.132': 0.16; 'received:cskk.homeip.net': 0.16; 'received:homeip.net': 0.16; 'received:optusnet.com.au': 0.16; 'received:syd.optusnet.com.au': 0.16; 'roy': 0.16; 'simpson': 0.16; 'wrote:': 0.18; 'input': 0.22; 'print': 0.22; 'header:User-Agent:1': 0.23; 'cheers,': 0.24; "i've": 0.25; 'header:In-Reply-To:1': 0.27; "i'm": 0.30; '+0100,': 0.31; 'fri,': 0.33; "can't": 0.35; 'but': 0.35; 'received:com.au': 0.36; 'received:211': 0.38; 'to:addr:python-list': 0.38; 'sure': 0.39; 'to:addr:python.org': 0.39; 'read': 0.60; 'most': 0.60; 'lost': 0.61; 'content-disposition:inline': 0.62; 'account': 0.65; 'fire': 0.65; 'needs,': 0.65; 'nobody': 0.68; 'memories': 0.84; 'ships': 0.84; 'streams': 0.84; 'shoulder': 0.91; 'watched': 0.91
Date	Sun, 19 Oct 2014 08:01:11 +1100
From	Cameron Simpson <cs@zip.com.au>
To	python-list@python.org
Subject	Re: Flush stdin
MIME-Version	1.0
Content-Type	text/plain; charset=utf-8; format=flowed
Content-Disposition	inline
Content-Transfer-Encoding	8bit
In-Reply-To	<pan.2014.10.18.16.55.19.164000@nowhere.invalid>
User-Agent	Mutt/1.5.21 (2010-09-15)
References	<pan.2014.10.18.16.55.19.164000@nowhere.invalid>
X-Optus-CM-Score	0
X-Optus-CM-Analysis	v=2.1 cv=dMCfxopb c=1 sm=1 tr=0 a=YuQlxtEQCowy2cfE5kc7TA==:117 a=YuQlxtEQCowy2cfE5kc7TA==:17 a=ZtCCktOnAAAA:8 a=PO7r1zJSAAAA:8 a=LcaDllckn3IA:10 a=r5UFkecV8NkA:10 a=IkcTkHD0fZMA:10 a=vrnE16BAAAAA:8 a=AdnIQGEx3bcDsBmIEi0A:9 a=QEXdDO2ut3YA:10
X-BeenThere	python-list@python.org
X-Mailman-Version	2.1.15
Precedence	list
List-Id	General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe	<https://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive	<http://mail.python.org/pipermail/python-list/>
List-Post	<mailto:python-list@python.org>
List-Help	<mailto:python-list-request@python.org?subject=help>
List-Subscribe	<https://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups	comp.lang.python
Message-ID	<mailman.14974.1413667595.18130.python-list@python.org> (permalink)
Lines	23
NNTP-Posting-Host	2001:888:2000:d::a6
X-Trace	1413667595 news.xs4all.nl 2906 [2001:888:2000:d::a6]:53161
X-Complaints-To	abuse@xs4all.nl
Xref	csiph.com comp.lang.python:79279

Show key headers only | View raw

On 18Oct2014 17:55, Nobody <nobody@nowhere.invalid> wrote:
>On Fri, 17 Oct 2014 12:38:54 +0100, Empty Account wrote:
>> I am using netcat to listen to a port and python to read stdin and print
>> to the console.
>>
>> nc -l 2003 | python print_metrics.py
>>
>> sys.stdin.flush() doesn’t seem to flush stdin,
>
>You can't "flush" an input stream.

Sure you can. Most streams are read through an API which buffers. That buffer 
can be discarded.

I'm not sure it is what the OP needs, but it is not a nonsensical idea.

Cheers,
Cameron Simpson <cs@zip.com.au>

I've seen things you people wouldn't believe.  Attack ships on fire off the
shoulder of Orion. I've watched C-beams glitter in the dark near the
Tannhauser Gate.  All these memories will be lost in time, like tears in rain.
         - Roy Baty, _Blade Runner_

Thread

Flush stdin Empty Account <emptya45@gmail.com> - 2014-10-17 12:38 +0100
  Re: Flush stdin Nobody <nobody@nowhere.invalid> - 2014-10-18 17:55 +0100
    Re: Flush stdin Tim Chase <python.list@tim.thechases.com> - 2014-10-18 12:32 -0500
      Re: Flush stdin Nobody <nobody@nowhere.invalid> - 2014-10-19 02:11 +0100
        Re: Flush stdin Dan Stromberg <drsalists@gmail.com> - 2014-10-18 18:34 -0700
        Re: Flush stdin Dan Stromberg <drsalists@gmail.com> - 2014-10-18 18:42 -0700
          Re: Flush stdin Nobody <nobody@nowhere.invalid> - 2014-10-22 03:49 +0100
            Re: Flush stdin Dan Stromberg <drsalists@gmail.com> - 2014-10-21 20:11 -0700
    Re: Flush stdin MRAB <python@mrabarnett.plus.com> - 2014-10-18 18:55 +0100
    Re: Flush stdin Cameron Simpson <cs@zip.com.au> - 2014-10-19 08:01 +1100
    Re: Flush stdin Terry Reedy <tjreedy@udel.edu> - 2014-10-18 18:35 -0400

csiph-web