Python write a new csv file by filtering selected rows from an existing csv file

Question

just a question, I was trying to write selected rows from a .csv file to a new .csv file, but there is an error.

The test.csv file that I was trying to read is like this

Answer 1

Since you are using the csv module anyway, why not write the file as you are reading it in:

import csv

with open('in.csv', 'r') as i, open('out.csv', 'w') as o:
   r = csv.reader(i, delimiter='\t')
   w = csv.writer(o, delimiter='\t')
   for row in r:
      if row[0].split('-')[0] == '2014':
          w.write(row)