Re: tarfile : read from a socket?

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From	MRAB <python@mrabarnett.plus.com>
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Subject	Re: tarfile : read from a socket?
Date	Thu, 11 Feb 2016 17:10:16 +0000
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On 2016-02-11 16:41, Ulli Horlacher wrote:
> 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?
>
Try this:

member = taro.next()
while member is not None:
     print('extracting "%s"' % member.name)
     taro.extract(member)
     member = tar.next()

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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