for *name*. It is supposed to be at position 0.
For modes ``'w:gz'``, ``'r:gz'``, ``'w:bz2'``, ``'r:bz2'``, :func:`tarfile.open`
- accepts the keyword argument *compresslevel* to specify the compression level of
- the file.
+ accepts the keyword argument *compresslevel* (default ``9``) to
+ specify the compression level of the file.
For special purposes, there is a second format for *mode*:
``'filemode|[compression]'``. :func:`tarfile.open` will return a :class:`TarFile`