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| Date | Sat, 18 Oct 2014 18:11:45 +1100 |
| From | Cameron Simpson <cs@zip.com.au> |
| To | python-list@python.org |
| Subject | Re: Flush stdin |
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On 17Oct2014 12:38, Empty Account <emptya45@gmail.com> 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, so I am using the termios >module. You're aware that a stdio flush and a termios flush operate on two totally unrelated buffers? >while True: > input = sys.stdin.readline() > # do some parsing > … > sys.stdout.write(parsed_data) > time.sleep(3) > termios.tcflush(sys.stdin, termios.TCIOFLUSH) > >I am receiving this exception >termios.error: (25, 'Inappropriate ioctl for device') That is because stdin is attached to the pipe from netcat. A pipe is not a terminal. >I will be using this script on Unix based systems and I wondered what >approach I could use >to flush stdin? Like Chris, I think you need to explain why you even want to flush stdin. There's probably something better you can do. Cheers, Cameron Simpson <cs@zip.com.au> I strongly suspect so. Practically everyone on sci.physics has a theory that is far superior to special relativity, general relativity, quantum mechanics *and* the standard model. Around here, it's only a small clique of arrogant young members of the physics establishment who fail to recognize these revolutionary theories. I'd explain why, but I have to go finish designing my faster-than-light vacuum energy perpetual motion telekinetic aether-powered time machine. - John Baez
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Re: Flush stdin Cameron Simpson <cs@zip.com.au> - 2014-10-18 18:11 +1100
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