how to convert to csv in python code example

Example: python convert a csv to a tsv

import csv

with open('D:/AddressEvaluation/NAD/NAD.csv','r') as csvin, open('D:/NAD.txt', 'w') as tsvout:
    csvin = csv.reader(csvin)
    tsvout = csv.writer(tsvout, delimiter='\t')

    for row in csvin:
        tsvout.writerow(row)