python save index in column code example

Example 1: pandas convert index to column

df.reset_index(inplace=True)

Example 2: how to make index column as a normal column

>>> df
                       val
tick       tag obs        
2016-02-26 C   2    0.0139
2016-02-27 A   2    0.5577
2016-02-28 C   6    0.0303