Simple Psuedo-Random Number Generation

gen_rand_numbers.py

# Using SystemRandom which is cryptographically secure[1],
# this prints out 64 psuedorandom characters for you to use in whatever.

# [1]https://docs.python.org/2/library/random.html
# "( Use os.urandom() or SystemRandom if you require a
# cryptographically secure pseudo-random number generator. )"

import random
import string
import sys

version_check = sys.version_info[0]
if version_check == 2:
    letters = string.letters
    print_this = ''.join(ransys.choice(characters) for x in xrange(64))
else:
    letters = string.ascii_letters
    print_this = ''.join(ransys.choice(characters) for x in range(64))

ransys = random.SystemRandom()

characters = string.digits + letters + string.punctuation
print(print_this)