def _rebuildIndex(self):
        symbols = self.df.index.tolist()
        ids = self.df['id'].values.tolist()
        self._id2symbol = dict(zip(ids,symbols))
Checks if ImportError was raised because module does not exist or
dataset/ETHPy150Open cmorgan/trading-with-python/lib/interactivebrokers.py/Subscriptions._rebuildIndex--crossover with--dataset/ETHPy150Open flask-admin/flask-admin/flask_admin/tools.py/module_not_found