5 houses problem

gistfile1.txt

#!/usr/bin/env python
# -*- coding: utf-8 -*-

from itertools import permutations

C = ["white", "blue", "yellow", "green", "red"] # colors
G = ["ps3", "xbox-one", "ps4", "pc", "xbox-360"] # game
P = ["galaxys5", "mslumia", "galaxys6", "iphone6", "iphone5"] # phone
N = ["brit", "american", "swedish", "german", "french"] # nationality
B = ["coca-cola", "coffee", "water", "beer", "pepsi"] # beverage

for pc in permutations(C):
  cs = {v:i for i,v in enumerate(pc)}
  if cs["red"] != cs["white"] - 1: continue  # 4
  for pg in permutations(G):
    gs = {v:i for i,v in enumerate(pg)}
    if cs["green"] != gs["xbox-one"]: continue  # 7
    for pp in permutations(P):
      ps = {v:i for i,v in enumerate(pp)}
      if gs["pc"] != ps["mslumia"]: continue  # 6
      if gs["ps4"] != ps["iphone6"] - 1 and gs["ps4"] != ps["iphone6"] + 1: continue  # 10
      if ps["galaxys6"] != gs["xbox-one"] - 1 and ps["galaxys6"] != gs["xbox-one"] + 1: continue  # 11
      for pn in permutations(N):
        ns = {v:i for i,v in enumerate(pn)}
        if ns["brit"] != cs["blue"]: continue  # 1
        if ns["french"] != ps["galaxys5"]: continue  # 2
        if ns["american"] != 0: continue # 9
        if ns["swedish"] != gs["xbox-360"]: continue  # 13
        if ns["american"] != cs["yellow"] - 1 and ns["american"] != cs["yellow"] + 1: continue  # 14
        for pb in permutations(B):
          bs = {v:i for i,v in enumerate(pb)}
          if ns["german"] != bs["coca-cola"]: continue  # 3
          if cs["red"] != bs["coffee"]: continue  # 5
          if bs["beer"] != 2: continue  # 8
          if gs["ps3"] != bs["beer"]: continue  # 12
          if gs["ps4"] != bs["pepsi"] - 1 and gs["ps4"] != bs["pepsi"] + 1: continue  # 15
          print cs, "\n", gs, "\n",  ps, "\n",  ns, "\n",  bs, "\n--------------------------\n",