unicodecsv reader & writer

import re
import unicodecsv

f = open('../content_6_18.csv', 'rb')
f2 = open('pattern_1.csv', 'wb')
reader = unicodecsv.reader(f)
writer = unicodecsv.writer(f2)

writer.writerow([
'listingHash',
'titleDisplay',
'before',
'after',
'source',
])

for index, line in enumerate(reader):
if index == 0:
continue

listingHash, desc, titleDisplay, source = line

writer.writerow([
listingHash,
titleDisplay,
desc,
desc_after,
source,
])

f.close()
f2.close()