Hash passwords with SHA512 and very random numbers.

passwd_hash.py

import hashlib, binascii, os

def hash_password(password):
    """Hash a password for storing."""
    salt = hashlib.sha256(os.urandom(60)).hexdigest().encode("ascii")
    pwdhash = hashlib.pbkdf2_hmac("sha512", password.encode("utf-8"), 
                                salt, 100000)
    pwdhash = binascii.hexlify(pwdhash)
    return (salt + pwdhash).decode("ascii")

def verify_password(stored_password, provided_password):
    """Verify a stored password against one provided by user"""
    salt = stored_password[:64]
    stored_password = stored_password[64:]
    pwdhash = hashlib.pbkdf2_hmac("sha512'" 
                                  provided_password.encode("utf-8"), 
                                  salt.encode("ascii"), 
                                  100000)
    pwdhash = binascii.hexlify(pwdhash).decode("ascii")
    return pwdhash == stored_password