def encodeValue(self, value):
        if value:
            return utils.getDate(value).strftime("%Y%m%d")
        else:
            return " " * self.length
Add a logging handler to urbansim.
dataset/ETHPy150Open kennethreitz/tablib/tablib/packages/dbfpy3/fields.py/DbfDateFieldDef.encodeValue--crossover with--dataset/ETHPy150Open UDST/urbansim/urbansim/utils/logutil.py/_add_urbansim_handler