period.py 文件源码

def __getstate__(self):
        state_dict = {k: v for k, v in iteritems(self.__dict__)
                      if not k.startswith('_')}

        state_dict['_portfolio_store'] = self._portfolio_store
        state_dict['_account_store'] = self._account_store

        state_dict['processed_transactions'] = \
            dict(self.processed_transactions)
        state_dict['orders_by_id'] = \
            dict(self.orders_by_id)
        state_dict['orders_by_modified'] = \
            dict(self.orders_by_modified)
        state_dict['_payout_last_sale_prices'] = \
            self._payout_last_sale_prices

        STATE_VERSION = 3
        state_dict[VERSION_LABEL] = STATE_VERSION
        return state_dict