crypt mksalt for python 2

mksalt.py

import string as _string
from random import SystemRandom as _SystemRandom

_saltchars = _string.ascii_letters + _string.digits + './'
_sr = _SystemRandom()

# SHA512 mksalt extracted from https://github.com/python/cpython/blob/master/Lib/crypt.py
def mksalt():
  return '$6$' + ''.join(_sr.choice(_saltchars) for char in range(16))
  

usage.py

import mksalt

print(crypt.crypt('secret', mksalt.mksalt()))