tarfile : read from a socket?

Ulli Horlacher framstag at rus.uni-stuttgart.de
Thu Feb 11 11:41:43 EST 2016


Ulli Horlacher <framstag at 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 at 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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