mfm24

import itertools
nationalities = ["Brit", "Dane", "Norwegian", "German", "Swede"]
# assign arbitrary number to each nationality
Brit, Dane, Norwegian, German, Swede = range(len(nationalities))
# this returns an iterater over all the permutations of 5 numbers
choices = lambda: itertools.permutations(range(len(nationalities)))

next_to_ltor = lambda l, r: l - 1 == r
next_to = lambda l, r: abs(l - r) == 1

mfm24

# -*- coding: utf-8 -*-
from __future__ import division
import struct
import zlib

def yield_block(header, data):
    assert len(header)==4, 'header must be 4 bytes!'
    # length:
    yield struct.pack('! L', len(data))
    # chunk type, 4 byte header

mfm24

# how exactly do conditions work??
from threading import Thread, Condition, Lock
import logging
logging.basicConfig()
log = logging.root
log.setLevel(logging.DEBUG)

mylock = Lock()

def wait_for_cond(c, msg):