[Tutor] HELP!!

[Chelsea G]

So I am importing a csv file to textfile and the first column is product
names and the second is a description of each. I am trying to find the sum
of all descriptions using sum(c.values)). Here is my code so far:

import csv
import json
import sys
#from sys import argv
from collections import defaultdict
from collections import Counter
#script, filename = argv
data = defaultdict(list)
counted_data = defaultdict(list)
grouped_data = defaultdict(list)

class dictionary:
with open ('weekly_20160102.csv', 'rb') as f:
reader = csv.reader(f)
next(reader, None)
for row in reader:
data[row[2]].append(row[3]) #this appends the description(value) to the
product name(key)
#new_item = {}
for key in data.keys():
#print key
c = Counter(data[key])
for value in c:
#print c[value]
if c[value] >= 5:
print key, ':', value, ':', c[value]
elif c[value] <= 1:
print 'other', ':', sum(c.values())


Please help!!