'The coordinate data for this object.  If this frame has no data, an
`ValueError` will be raised.  Use `has_data` to
check if data is present on this frame object.'

@property
def data(self):

    if (self._data is None):
        raise ValueError(u'The    frame    object    "{0!r}"    does    not    have    associated    data'.format(self))
    return self._data
