Hello,
I was wondering if it possible to specify a compression level when I
tar/gzip a file in Python using the tarfile module. I would like to
specify the highest (9) compression level for gzip.
Ideally:
t = tarfile.open(tar_file_name+'.tar.gz', mode='w:gz:9')
When I create a simple tar and then gzip it 'manually' with compression
level 9, I get a smaller archive than when I have this code execute with
the w:gz option.
Is the only way to accomplish the higher rate to create a tar file
and then use a different module to gzip it (assuming I can specify
the compression level there)?
Thanks,
Esmail
-----------------
My current code:
-----------------
def tar_it_up(target_dir_name, tar_file_name=None):
'''
tar up target_dir_name directory and create a
tar/zip file with base name tar_file_name
appends a date/timestamp to tar_file_name
'''
time_string = time.strftime("_%b_%d_%Y_%a_%H_%M")
if tar_file_name is None:
tar_file_name = target_dir_name
tar_file_name += time_string
print ('Creating archive of %s ...' % target_dir_name),
t = tarfile.open(tar_file_name+'.tar.gz', mode='w:gz')
# t = tarfile.open(tar_file_name+'.tar', mode='w')
t.add(target_dir_name)
t.close()
print ('saved to %s.tar.gz' % tar_file_name)
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