verify stake.com limbo outcome with python

stake_limbo_verify.py

import hmac
import hashlib

def getLimboOutcome(server, client, nonce):
        server = server.encode()
        client = client.encode()
        nonce = str(nonce).encode()
        round = 0
        hash = hmac.new(server, client+b':'+nonce+b':'+str(round).encode('utf-8'), hashlib.sha256).digest()
        first4 = hash[:4]
        x = 1
        total = 0
        for byt in first4:
                total += int(byt) / (256 ** x)
                x += 1

        total *= 16777216
        outcome = 16777216 / (total + 1) * (1 - 0.01)
        return outcome

import secrets

server = secrets.token_hex(32)
client = secrets.token_urlsafe(8)
nonce = 1
outcome = getLimboOutcome(server, client, nonce)
print(f"server: {server}\nclient: {client}\nnonce: {nonce}\nlimbo outcome: {outcome:.2f}x")