def __getattr__(self, name):
		component = getattr(self.__world.components, name)
		return ComponentEntitySet(component, self.entities & component.entities)
for datetime to string for year < 1900
dataset/ETHPy150Open caseman/grease/grease/world.py/EntityExtent.__getattr__--crossover with--dataset/ETHPy150Open modflowpy/flopy/flopy/export/netcdf.py/NetCdf._dt_str