[issue2058] reduce tarfile memory footprint

Lars Gustäbel <[EMAIL PROTECTED]> added the comment: Checked into the py3k branch as r62337. -- resolution: -> accepted status: open -> closed __ Tracker <[EMAIL PROTECTED]> __ __

[issue2058] reduce tarfile memory footprint

New submission from Lars Gustäbel: tarfile.py wastes lots of memory resources. The memory consumption does not depend on the size of an archive but on the numbers of members in it. The attached patch reduces memory usage by about 60% and consists of two independent strategies (each with about 30%