Ouvrir les images? Python

Im création d'une base de texte labryinth jeu, mais j'ai pensé qu'il avait besoin de quelques photos pour illustrer ce qui se passe. Pour une raison quelconque, il meurt juste quand j'essaie d'aller à a2(Où l'image devrait apparaître). Je suis un débutant afin de ne pas juger mon code tellement ^^

import Image
a1 = ("a1 Go to the start of the Labyrinth", "You're at the start of the labyrinth") #Start
a2 = ("a2 Go Left", "You've chosen to go left, unfortunatly it leads to nothing.") #Fail route
a3 = ("a3 Go Right", "You've chosen to go right.") #Right route
a4 = ("a4 Go Left", "You've chosen to go left") #Fail route
a5 = ("a5 Go Right", "You've chosen to go right") #Right route
a6 = ("a6 Go Right", "You've chosen to go right") #Fail route; end
a7 = ("a7 Go Left", "You've chosen to go left") #Fail route
a8 = ("a8 Go Left", "You've chosen to go left") #Fail route; end
a9 = ("a9 Go Right", "You've chosen to go right") #Fail route; end
a10 = ("a10 Go Forwards", "You've chosen to go forwards") #Right route
a11 = ("a11 Go left", "You've chosen to go left; Congratulations, you won! You may restart") #Right route; end; victory
fail = ("fail End game", "You lost!") #End game
b1 = ("b1 Go Left", "You've chosen to go left")
b2 = ("b2 Go Right", "You've chosen to go right")
b3 = ("b3 Go Left", "You've chosen to go left")
transitions = {
a1: (a2, a3),
a2: (fail, a1),
a3: (b1,),
b1: (a4, a5,),
a4: (b2,),
b2: (a7, a6,),
a5: (b3,),
b3: (a9, a10,),
a6: (fail, a1),
a7: (a8,),
a8: (fail, a1),
a9: (fail, a1),
a10: (a11,),
a11: (a1,)
}
location = a1
while True:
print location[1]
print ("Here you can: ")
for (i, t) in enumerate(transitions[location]):
print i + 1, t[0]
choice = int(raw_input("Choose one "))
location = transitions[location][choice - 1]
if location == a2:
Image.open(picture.jpg)
Img.show

OriginalL'auteur Casper Olsson | 2013-05-05