shuffler.py

#! /usr/bin/env python3
import csv
import random
import sys

try:
    csv_filename = sys.argv[1]
except IndexError:
    print('USAGE: python shuffler <filename>')
    sys.exit(0)

csv_list = []
try:
    csv_reader = csv.reader(open(csv_filename), delimiter=',')
except FileNotFoundError:
    print('File not found')
    sys.exit(0)

for row in csv_reader:
    csv_list.extend(row)

shuffled_list = random.sample(csv_list, len(csv_list))
str_shuffled_list = ''
for item in shuffled_list[:30]:
    str_shuffled_list += ' {}'.format(item)
print(str_shuffled_list)