reader.py 文件源码

def _load_table(self, filepath):
        """
        Load table from file system.

        :param str filepath: Path to table in CSV, TSV, XLSX or
                   Pandas pickle format.
        :return: Pandas table
        :rtype: pandas.core.frame.DataFrame
        """
        _, ext = os.path.splitext(filepath.lower())
        if ext == '.tsv':
            return pd.read_table(filepath, **self.kwargs)
        if ext == '.csv':
            return pd.read_csv(filepath, **self.kwargs)
        if ext == '.xlsx':
            return pd.read_excel(filepath, **self.kwargs)
        return pd.read_pickle(filepath, **self.kwargs)