csv
#df = pd.DataFrame({
#    'name' : list('CCCDDDEEE'),
#    'value': [2, 7, 4, 1, 2, 6, 8, 4, 7]
#})
#df.to_csv('example.csv', index=False)

https://chrisalbon.com/python/pandas_dataframe_importing_csv.html
    .to_csv(filename
        , index=False
        , sep='\t'
        , encoding='utf-8'
    )
    .read_csv(filename)

????
https://www.python-course.eu/pandas_data_files.php