New submission from Alex Leach <beamesle...@gmail.com>:
Hi,
I'm trying to parse the contents of tar archives (.tgz) on the fly, and failing
to do so. The tar archives in question have directory hierarchies, and only if
a TarInfo object is a file (.isreg() ) will I try and read it's contents.
I figured a sensible idea would be to pass a socket(.makefile()) object to the
fileobj attribute of tarfile.open. This doesn't work because a socket file
descriptor does not have a tell() method. I understand that a socket object
shouldn't need to have a tell method, but why should the fileobj passed to
tarfile.open need it?
Code:-
def get_headers( self, file_name ):
sock = socket.socket()
sock.bind(('localhost',0))
fd = sock.makefile()
handle = tarfile.open( file_name,'r',fileobj=fd ) # This line breaks
I'm currently testing on Python v2.6.6 EPD 6.3-2 64 bit, on an Autumn 2010 Mac
Pro.
My dirty bug-fix idea is to subclass tarfile.TarFile, and give it a tell()
method, to just return 0. I don't want to have to do that. Any alternative
suggestions would be greatly appreciated.
Cheers,
Alex
----------
components: Extension Modules
messages: 130482
nosy: Alex.Leach
priority: normal
severity: normal
status: open
title: tarfile with socket incompatability
_______________________________________
Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue11458>
_______________________________________
_______________________________________________
Python-bugs-list mailing list
Unsubscribe:
http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
