'if not a sctructured array'

def _array_typer(self):

    if (not self.dataset.dtype.names):
        'homogeneous    dtype    array'
        self._arraytype = 'homog'
    elif self.dataset.dtype.names:
        'structured    or    rec    array'
        self._arraytype = 'sctruct'
    else:
        assert ((self._arraytype == 'sctruct') or (self._arraytype == 'homog'))
