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Re: Learning python networking

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From "Frank Millman" <frank@chagford.com>
Subject Re: Learning python networking
Date Wed, 15 Jan 2014 15:31:15 +0200
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"Chris Angelico" <rosuav@gmail.com> wrote in message 
news:CAPTjJmpb6yr-VpWypbJQn0a=pNjvNV2CchVBZaK+v_5JoSQOBg@mail.gmail.com...
> You just run a loop like this:
>
> buffer = b''
>
> def gets():
>    while '\n' not in buffer:
>        data = sock.recv(1024)
>        if not data:
>            # Client is disconnected, handle it gracefully
>            return None # or some other sentinel
>    line, buffer = buffer.split(b'\n',1)
>    return line.decode().replace('\r', '')
>

I think you may have omitted a line there -

def gets():
    while '\n' not in buffer:
        data = sock.recv(1024)
        if not data:
            # Client is disconnected, handle it gracefully
            return None # or some other sentinel
#-->
        buffer = buffer + data
#-->
    line, buffer = buffer.split(b'\n',1)
    return line.decode().replace('\r', '')

Also, as I am looking at it, I notice that the second line should say -

    while b'\n' not in buffer:

I feel a bit guilty nitpicking, as you have provided a wonderfully 
comprehensive answer, but I wanted to make sure the OP did not get confused.

Frank Millman

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Thread

Learning python networking Paul Pittlerson <menkomigen6@gmail.com> - 2014-01-08 14:27 -0800
  Re: Learning python networking Chris Angelico <rosuav@gmail.com> - 2014-01-09 10:29 +1100
    Re: Learning python networking Paul Pittlerson <menkomigen6@gmail.com> - 2014-01-15 02:37 -0800
      Re: Learning python networking Denis McMahon <denismfmcmahon@gmail.com> - 2014-01-15 11:11 +0000
      Re: Learning python networking Chris Angelico <rosuav@gmail.com> - 2014-01-15 23:52 +1100
      Re: Learning python networking "Frank Millman" <frank@chagford.com> - 2014-01-15 15:31 +0200
      Re: Learning python networking Chris Angelico <rosuav@gmail.com> - 2014-01-16 01:07 +1100
      Re: Learning python networking Chris Angelico <rosuav@gmail.com> - 2014-01-16 02:36 +1100
      Re: Learning python networking Chris Angelico <rosuav@gmail.com> - 2014-01-16 03:31 +1100
      Re: Learning python networking Chris Angelico <rosuav@gmail.com> - 2014-01-16 03:32 +1100
      Re: Learning python networking William Ray Wing <wrw@mac.com> - 2014-01-15 11:43 -0500
      Re: Learning python networking Chris Angelico <rosuav@gmail.com> - 2014-01-16 04:07 +1100
      Re: Learning python networking William Ray Wing <wrw@mac.com> - 2014-01-15 11:25 -0500
  Re: Learning python networking Dan Stromberg <drsalists@gmail.com> - 2014-01-08 15:53 -0800
  Re: Learning python networking Chris Angelico <rosuav@gmail.com> - 2014-01-09 11:07 +1100
  Re: Learning python networking Dan Stromberg <drsalists@gmail.com> - 2014-01-08 19:49 -0800
    Re: Learning python networking Alister <alister.ware@ntlworld.com> - 2014-01-09 11:32 +0000
  Re: Learning python networking Chris Angelico <rosuav@gmail.com> - 2014-01-09 15:20 +1100

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