f = create_temp_file(os.popen("zcat %s.gz" % file, "r"))
elif os.path.isfile("%s.bz2" % file):
f = create_temp_file(os.popen("bzcat %s.bz2" % file, "r"))
f = create_temp_file(os.popen("zcat %s.gz" % file, "r"))
elif os.path.isfile("%s.bz2" % file):
f = create_temp_file(os.popen("bzcat %s.bz2" % file, "r"))