Answers for "hin dataframe how to move index to a column"

set index to column pandas

df = df.set_index('col')
df['col'] = df.index

how to change index in dataframe python

index = [1,2]
df.index = index

dataframe change index

>>> df.set_index('month')
       year  sale
month
1      2012    55
4      2014    40
7      2013    84
10     2014    31