Pandas reset index doesn't seem to work?

Question

I\'m not sure where I am astray but I cannot seem to reset the index on a dataframe.

When I run test.head(), I get the output below:

Answer 1

BrenBarn's answer works.

The following also worked via this thread, which isn't a troubleshooting so much as an articulation of how to reset the index:

test = test.reset_index(drop=True)