CSVs

import unicodecsv
enrollments_filename=''
with open('enrollments.csv', 'rb') as f:
	reader = unicodecsv.DictReader(f)
	enrollements = list(reader)

with open('daily_engagement.csv', 'rb') as f:
	reader = unicodecsv.DictReader(f)
	daily_engagement = list(reader)

with open('project_submissions.csv', 'rb') as f:
	reader = unicodecsv.DictReader(f)
	project_submissions = list(reader)

daily_engagement = None
project_submissions = None

import unicodecsv

def read_csv(filename):
	with open(filename, 'rb') as f:
		reader = unicodecsv.DictReader(f)
		return list(reader)

enrollments = read_csv('')
daily_engagement = read_csv('')
project_submissions = read_csv('')

enrollment_num_rows = 0
enrollment_num_unique_students = 0

engagement_num_rows = 0
engagement_num_unique_students = 0

submission_num_rows = 0
submission_num_unique_students = 0