datatables.py 文件源码

def transform(self, dataframe, display_schema):
        csv_df = self._format_columns(dataframe, display_schema['metrics'], display_schema['dimensions'])

        if isinstance(dataframe.index, pd.RangeIndex):
            # If there are no dimensions, just serialize to csv without the index
            return csv_df.to_csv(index=False)

        csv_df = self._format_index(csv_df, display_schema['dimensions'])

        row_dimension_labels = self._format_row_dimension_labels(display_schema['dimensions'])
        return csv_df.to_csv(index_label=row_dimension_labels)