temp_tar.py

from tarfile import TarFile, TarInfo, open as OpenTarfile
from tempfile import NamedTemporaryFile, TemporaryDirectory
import shutil

file_data = [
  (b'1239EAD09123FCC', "/data/local/tmp/me"),
  (b'aaaaaaaaaaaaaaa', "/data/local/tmp/a"),
  (b'bbbbbbbbbbbbbbb', "/data/local/tmp/b")
]

tar_name = None
with TemporaryDirectory(prefix="xxx") as tmp_dir:

  with NamedTemporaryFile(delete=False, dir=tmp_dir) as fd:

    tar_name = fd.name
    print(f'Created {fd.name}')

    with OpenTarfile(fileobj=fd, mode='w:gz') as tar:

      for data, filename in file_data:

        with NamedTemporaryFile(delete=False, dir=tmp_dir) as in_fd:

          in_fd.write(data)
          in_fd.close()

          tar.add(in_fd.name, arcname=filename)

  shutil.copy(tar_name, "test.tar.gz")