Example of hashing a password.

passwd.py

import hashlib
import binascii
import os
import sys

# salt should be generated once per user
# if python 3.6 use salt = secrets.token_bytes(8)
salt = os.urandom(8)

# convert user provided password to bytes
password = bytes(sys.argv[1], 'utf-8')

dk = hashlib.pbkdf2_hmac('sha512',  # algorithm name
                         password,  # must be binary
                         salt,  # 64 bit salt
                         10000  # Minimum 10,000 iterations per NIST Aug 2016
                         )

# convert to hexidecimal
hexed = binascii.hexlify(dk)

print(hexed)