def drop(self):
        if hasattr(self, 'dropped'):
            return ""
        if hasattr(self, '_table'):
            (comptype, objtype) = (self._table.objtype, 'COLUMN')
            compname = self._table.qualname()
        elif hasattr(self, '_type'):
            (comptype, objtype) = ('TYPE', 'ATTRIBUTE')
            compname = self._type.qualname()
        else:
            raise TypeError("Cannot determine type of %s", self.name)
        return "ALTER %s %s DROP %s %s" % (comptype, compname, objtype,
                                           quote_id(self.name))
Returns the trade price.
dataset/ETHPy150Open perseas/Pyrseas/pyrseas/dbobject/column.py/Column.drop--crossover with--dataset/ETHPy150Open gbeced/pyalgotrade/pyalgotrade/bitstamp/wsclient.py/Trade.getPrice