Reset column index of pandas dataframe

Question

Is it possible to reset columns so they becomes first row of DataFrame. For example,

import pandas as pd

df = pd.DataFrame({\'a\': [1, 2, 3], \'b\'         


        

Answer 1

Use

In [57]: pd.DataFrame(np.vstack([df.columns, df]))
Out[57]:
   0  1
0  a  b
1  1  4
2  2  5
3  3  6