'Open uncompressed tar archive name for reading or writing.'

@classmethod
def taropen(cls, name, mode='r', fileobj=None, **kwargs):

    if ((len(mode) > 1) or (mode not in 'raw')):
        raise ValueError("mode    must    be    'r',    'a'    or    'w'")
    return cls(name, mode, fileobj, **kwargs)
