How to convert index of a pandas dataframe into a column?

Question

This seems rather obvious, but I can\'t seem to figure out how to convert an index of data frame to a column?

For example:

df=
        gi       ptt_l         


        

Answer 1

A very simple way of doing this is to use reset_index() method.For a data frame df use the code below:

df.reset_index(inplace=True)

This way, the index will become a column, and by using inplace as True,this become permanent change.