schema.py 文件源码

def drop(self):
        """
        Remove version control from a database.
        """
        if SQLA_07:
            try:
                self.table.drop()
            except sa_exceptions.DatabaseError:
                raise exceptions.DatabaseNotControlledError(str(self.table))
        else:
            try:
                self.table.drop()
            except (sa_exceptions.SQLError):
                raise exceptions.DatabaseNotControlledError(str(self.table))