def initialize(self, description):
        model = self.model
        conv = []
        identity = lambda x: x
        for i in range(len(description)):
            func = identity
            column = description[i][0]
            found = False
            if self.column_meta is not None:
                try:
                    select_column = self.column_meta[i]
                except IndexError:
                    pass
                else:
                    if isinstance(select_column, Field):
                        func = select_column.python_value
                        column = select_column._alias or select_column.name
                        found = True
                    elif (isinstance(select_column, Func) and
                            len(select_column.arguments) and
                            isinstance(select_column.arguments[0], Field)):
                        if select_column._coerce:
                            # Special-case handling aggregations.
                            func = select_column.arguments[0].python_value
                        found = True

            if not found or column in model._meta.columns:
                field_obj = model._meta.columns[column]
                column = field_obj.name
                func = field_obj.python_value

            conv.append((i, column, func))
        self.conv = conv
dataset/ETHPy150Open coleifer/peewee/peewee.py/ExtQueryResultWrapper.initialize/operator `and` -> `or`