[Tutor] using tarfile on strings or filelike objects

[Barton David]

I like that I can access the contents of a zip archive that's stored in
memory (rather than on disk) by packing the archive contents into a
StringIO or cStringIO object and feeding that to ZipFile...
 
i.e. 
 
filelike=cStringIO.StringIO(archive_as_string)
zf=zipfile.ZipFile(filelike)
content=zf.read(archive_member_name)
zf.close()
filelike.close()
 
but I can't get the same thing to work with TarFile. Is there any way to
do this? (Other than first saving the archive data to disk and then
passing the path to TarFile.open?) The tarfile module documentation
talks about an optional fileobj flag but this doesn't seem to work.
 
cheers
Dave

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