Method __init__

Lib/test/test_tarfile.py:3603–3605

(self, **kwargs)

            ... # `tar` is now a TarFile with 'filename' in it!
    """
    def __init__(self, **kwargs):
        self.bio = io.BytesIO()
        self.tar_kwargs = dict(kwargs)

    def __enter__(self):
        self.tar_w = tarfile.TarFile(mode='w', fileobj=self.bio, **self.tar_kwargs)