How to compress a tar file in a tar.gz without directory?

Question

I'm looking for a way to compress a tar file in a tar.gz without directory.

Today my code generate a TAR file without directory with "tarfile" library and arcname arguments but when I want to compress this TAR file in TAR.GZ I don't understand how to delete directory.

I have made many tests in the last 3 days.

My code :

Tarname = example.tar
ImageDirectory = C:\...
TarDirectory = C:\..

tar = tarfile.open(Tarname, "w")
tar.add(ImageDirectory,arcname=TarName)
tar.close()

targz = tarfile.open("example.tar.gz", "w:gz")
targz.add(TarDirectory, arcname=TarName)
targz.close()

Answer 1

For individual file(s) :

tar.add(file, arcname=os.path.basename(file))

for each file that you want to add. basename will strip the directory information.

Or, for a recursive directory :

def flatten(tarinfo):
    tarinfo.name = os.path.basename(tarinfo.name)
    return tarinfo

tar = tarfile.open("example.tar.gz", "w:gz")
tar.add("directory", filter=flatten)
tar.close()

Answer 2

Try using the gzip module : Here is an example of how to use it :

import gzip
f_in = open('file.txt', 'rb')
f_out = gzip.open('file.txt.gz', 'wb')
f_out.writelines(f_in)
f_out.close()
f_in.close()