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Groups > comp.lang.python > #102814

Re: tarfile : read from a socket?

From Ulli Horlacher <framstag@rus.uni-stuttgart.de>
Newsgroups comp.lang.python
Subject Re: tarfile : read from a socket?
Date 2016-02-11 16:41 +0000
Organization University of Stuttgart, FRG
Message-ID <n9idk7$37f$1@news2.informatik.uni-stuttgart.de> (permalink)
References <n9hgtb$rls$1@news2.informatik.uni-stuttgart.de> <mailman.43.1455187713.22075.python-list@python.org> <n9i07l$vgl$1@news2.informatik.uni-stuttgart.de> <n9i246$vva$1@news2.informatik.uni-stuttgart.de>

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Ulli Horlacher <framstag@rus.uni-stuttgart.de> wrote:

> With 
> 
>   taro = tarfile.open(fileobj=sock.makefile('w',kB64),mode='w|')
> 
> I get no more error.

Of course, this is the writing client.

Now I have a small problem with the reading client.

This code works so far:

  sfo = sock.makefile('r')
  taro = tarfile.open(fileobj=sfo,mode='r|')
  taro.extractall(path=edir)

But it does not writes anything to the terminal to inform the user.

When I use:

  for member in taro.getmembers():
      print('extracting "%s"' % member.name)
      taro.extract(member)

I get the error:

  File "/usr/lib/python2.7/tarfile.py", line 556, in seek
    raise StreamError("seeking backwards is not allowed")

Of course, a stream is not seekable.

Any ideas?

-- 
Ullrich Horlacher              Server und Virtualisierung
Rechenzentrum IZUS/TIK         E-Mail: horlacher@tik.uni-stuttgart.de
Universitaet Stuttgart         Tel:    ++49-711-68565868
Allmandring 30a                Fax:    ++49-711-682357
70550 Stuttgart (Germany)      WWW:    http://www.tik.uni-stuttgart.de/

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Thread

tarfile : read from a socket? Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2016-02-11 08:31 +0000
  Re: tarfile : read from a socket? INADA Naoki <songofacandy@gmail.com> - 2016-02-11 19:26 +0900
  Re: tarfile : read from a socket? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-02-11 11:47 +0100
    Re: tarfile : read from a socket? Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2016-02-11 12:53 +0000
      Re: tarfile : read from a socket? MRAB <python@mrabarnett.plus.com> - 2016-02-11 13:16 +0000
      Re: tarfile : read from a socket? Chris Angelico <rosuav@gmail.com> - 2016-02-12 00:18 +1100
        Re: tarfile : read from a socket? Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2016-02-11 13:34 +0000
      Re: tarfile : read from a socket? Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2016-02-11 13:25 +0000
        Re: tarfile : read from a socket? Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2016-02-11 16:41 +0000
          Re: tarfile : read from a socket? MRAB <python@mrabarnett.plus.com> - 2016-02-11 17:10 +0000
          modifying a standard module? (was: Re: tarfile : read from a socket?) Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2016-02-11 17:10 +0000
            Re: modifying a standard module? (was: Re: tarfile : read from a socket?) Matt Wheeler <m@funkyhat.org> - 2016-02-12 20:53 +0000
              Re: modifying a standard module? Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2016-02-12 22:46 +0000
                Re: modifying a standard module? Paul Rubin <no.email@nospam.invalid> - 2016-02-12 16:21 -0800
          Re: tarfile : read from a socket? Peter Otten <__peter__@web.de> - 2016-02-11 18:18 +0100
          Re: tarfile : read from a socket? Lars Gustäbel <lars@gustaebel.de> - 2016-02-11 18:27 +0100
          Re: tarfile : read from a socket? Random832 <random832@fastmail.com> - 2016-02-11 16:23 -0500
          Re: tarfile : read from a socket? Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-02-12 09:35 +0100
          Re: tarfile : read from a socket? Lars Gustäbel <lars@gustaebel.de> - 2016-02-12 09:40 +0100
            Re: tarfile : read from a socket? Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2016-02-12 12:48 +0000

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