pipetest.py

import os
import random 

RANDOM_INTS_PATH='random-ints.txt'
LIMIT=1000000000000000

if not os.path.exists(RANDOM_INTS_PATH):
    os.mkfifo(RANDOM_INTS_PATH)

with open(RANDOM_INTS_PATH, 'w') as f:
    for x in xrange(LIMIT):
        f.write(str(random.randrange(LIMIT)))
        f.write('\n')


#while read x; do echo "$x"; done < random-ints.txt