Add files from one tar into another tar in python

I would like to make a copy of a tar, with some files removed (based on their name and possably other properties like symlink or so). As I already have the tar file open in python, so I would like to do this in python. I understood that TarFile.getmembers() returns a list of TarInfo objects and TarFile.addfile(tarinfo) accepts a TarInfo object. But when I feed one into the other, a corrupted tar is created (without errors). ``` import tarfile oldtar=tarfile.open('/tmp/old.tar',"r") newtar=tarfile.open('/tmp/new.tar',"w") for member in oldtar.getmembers(): if not member.name == 'dev/removeme.txt': newtar.addfile(member) else: print "Skipped", member.name newtar.close() oldtar.close() ```