def _transform(self, m):
        return np.ones(self.mesh.nC)*m
od.viewitems() -> a set-like object providing a view on od's items
dataset/ETHPy150Open simpeg/simpeg/SimPEG/Maps.py/SurjectFull._transform--crossover with--dataset/ETHPy150Open PythonCharmers/python-future/docs/3rd-party-py3k-compat-code/pandas_py3k.py/_OrderedDict.viewitems