How to delete columns in a CSV file?

Question

I have been able to create a csv with python using the input from several users on this site and I wish to express my gratitude for your posts. I am now stumped and will po

Answer 1

you can use the csv package to iterate over your csv file and output the columns that you want to another csv file.

The example below is not tested and should illustrate a solution:

import csv

file_name = 'C:\Temp\my_file.csv'
output_file = 'C:\Temp\new_file.csv'
csv_file = open(file_name, 'r')
## note that the index of the year column is excluded
column_indices = [0,1,3,4]
with open(output_file, 'w') as fh:
    reader = csv.reader(csv_file, delimiter=',')
    for row in reader:
       tmp_row = []
       for col_inx in column_indices:
           tmp_row.append(row[col_inx])
       fh.write(','.join(tmp_row))