def _get_n_executed(self):
        return self.n_statements - self.n_missing
Like _dataset, but create on KeyError.
dataset/ETHPy150Open RoseOu/flasky/venv/lib/python2.7/site-packages/coverage/results.py/Numbers._get_n_executed--crossover with--dataset/ETHPy150Open yinhm/datafeed/datafeed/datastore.py/Day._require_dataset