Preserving column order in the pandas to_csv method

Question

The to_csv method of pandas does not preserve the order of columns. It chooses to alphabetically arrange the columns in CSV. This is a bug and has been reported and is supposed

Answer 1

Try the following solution. Even I faced the same issue. I solved it as follows:

import pandas as pd
df = pd.DataFrame({'V_pod_error' : [a],
                   'V_pod_used' : [b],
                   'U_sol_type' : [c]
                                ...
                                ... and so on upto 50 columns }

column_order = ['V_pod_error', 'V_pod_used', 'U_sol_type',.....# upto 50 column names]

df[column_order].to_csv(file_name)