little script to sort massive 311 csv: http://opendatadc.org/dataset/3-1-1-service-request-data-1999-2014

graffitisorter.py

import csv

requests = open("DC311.csv")
tags = open("graffiti.csv", 'w')

read_file = csv.reader(requests)
write_file = csv.writer(tags)

Graffiti = 0

for line in read_file:
	if line[5].strip() == 'Graffiti':
		Graffiti += 1  
		write_file.writerow(line)

print "There are %s Graffiti Removla service requests in DC as of 2009" % (Graffiti)