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what am I doing wrong??

this should be a this or that answer, but it fails if either are not true??

code below

 finish = input("Finish:")
if board.arena[finish[0]] [finish[1]] != '-' or board.arena[finish[0]] [finish[1]] != 'B':
print"Not a legal move"

#!/usr/bin/env python
import os, sys



#text and copywrtie information with rules
def Question():
question = raw_input("Welcome to PyHexAPawn, would you like to read the instructions? Y/n: ")
if question == 'Y' or question == 'n':
if question == 'Y':
OpeningText()
else:
print "you must enter either Y or n, nothing more please"
Question()

def OpeningText():
Rules_File = open('rules.txt', 'r')
for line in Rules_File:
print line
Rules_File.close()

def Clear_screen():
name = os.name
if name == 'nt':
os.system("cls")
else:
os.system("clear")




class Game_Board():
def __init__(self):
self.arena = [ ['B','B','B'], ['-','-','-'], ['W','W','W'] ]

def Print_Board(self):
print self.arena[0][0], self.arena[0][1], self.arena[0][2]
print self.arena[1][0], self.arena[1][1], self.arena[1][2]
print self.arena[2][0], self.arena[2][1], self.arena[2][2]




def main():
#OpeningText()
Question()

#define board and print it
Clear_screen()
board = Game_Board()
board.Print_Board()

#this will be the main loop a return will exit
while 1:

while 1:

#user input
start = input("Start:")
if board.arena[start[0]] [start[1]] != 'W':
print"you must choose your pawn"
else:
finish = input("Finish:")
if board.arena[finish[0]] [finish[1]] != '-' or board.arena[finish[0]] [finish[1]] != 'B':
print"Not a legal move"
else:
return


return


#end game


if __name__ =="__main__":
main()

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don't know what I did wrong, but in case people care, here is my code at its current state. this is a nice basic AI experiment. no fancy graphics, thou with pygame they would be simple to add, but for now this is an experiment in having the computer learn, the same way we do, observer and repeat along with remember your successes.

this is still rough, I am working out logic...love that python shell

#!/usr/bin/env python
import os, sys, random, time

#text and copywrtie information with rules
def Question():
question = raw_input("Welcome to PyHexAPawn, would you like to read the instructions? Y/n: ")
if question == 'Y' or question == 'n':
if question == 'Y':
OpeningText()
else:
print "you must enter either Y or n, nothing more please"
Question()

def OpeningText():
x = 0
Rules_File = open('rules.txt', 'r')
for line in Rules_File:
print line,
x += 1
if x == 40:
raw_input("Press Enter to contenue")
x = 0
Rules_File.close()

#cross platform clear screen
def Clear_screen():
name = os.name
if name == 'nt':
os.system("cls")
else:
os.system("clear")
#find the key in a dictionary from a value
def find_key(dic,val):
return [k for k, v in dic.iteritems() if v == val] [0]
def User_inputStart(board):
try:
start = int(raw_input("Start:"))
except ValueError:
print "incorrect input"
start = User_inputStart(board)
if board.arena[start] != 'W':
print "you have to select your pawn"
User_inputStart(board)
return(start)

def User_inputFinish():
try:
finish = int(raw_input("Finish:"))
except ValueError:
print "incorrect input"
User_inputFinish()
return(finish)
def Check_badMove(randMove):
badmove = [9,13,19,23] #holds moves that would be illegal
for check in badmove:
if randMove == check:
return 1
return 0


class Game_Board():
def __init__(self):
self.arena = [ 'B','B','B', '-','-','-', 'W','W','W' ]
self.location = {0: 0,1: 1,2: 2,10: 3,11: 4,12: 5,20: 6,21: 7,22: 8}

def Print_Board(self):
print self.arena[0], self.arena[1], self.arena[2]
print self.arena[3], self.arena[4], self.arena[5]
print self.arena[6], self.arena[7], self.arena[8]


class Computer():
def __init__(self):
self.memory = []
self.currentMap = []
self.moves = []
self.currentmove = []
self.currentPawns = []
def Move(self,board):
self.memory.append(board)
#returns a list, with the first number representing true or false
def Checkmemory(self,test):
x = 0
for check in self.memory:
if check == test:
return ("true",x)
x += 1
return ("false",0)
def addToMoves(self,Move):
self.currentmove.append(Move)

def Win(self):
self.moves.append(self.currentmove)
self.currentmove = []
def Lose(self):
x = len(self.currentmove)
del self.currentmove[x-1]
self.moves.append(self.currentmove)
self.currentmove = []


#main loop
def main():
#create game instance varables
computer = Computer()
computer.currentPawns = [0,1,2]

#I like default values, I know so Un Python like
playerStart = 0
playerFinish = 0

Question()
raw_input("Press Enter to start play")

#define moves


#define board

board = Game_Board()

contenue = "yes"
#this will be the main loop a return will exit
while contenue == "yes":
#define if the player made a fair move
nomove = 0
Clear_screen()
board.Print_Board()
while 1:

#user input check
playerStart = User_inputStart(board)
playerFinish = User_inputFinish()
#check that move is legal
if find_key(board.location,playerStart) - 10 == find_key(board.location,playerFinish):#up one
if board.arena[playerFinish] != 'B':
board.arena[playerStart] = '-'
board.arena[playerFinish] = 'W'
break
if board.arena[playerFinish] == 'B':
nomove = 1
break
if find_key(board.location,playerStart) - 11 == find_key(board.location,playerFinish):#diagnal left
if board.arena[playerFinish] != 'B':
nomove = 1
break
elif board.arena[playerFinish] == 'B':
board.arena[playerStart] = '-'
board.arena[playerFinish] = 'W'
#need to remove computer player
break
elif find_key(board.location,playerStart) - 9 == find_key(board.location,playerFinish):#diagnal right
if board.arena[playerFinish] != 'B':
nomove = 1
break
elif board.arena[playerFinish] == 'B':
board.arena[playerStart] = '-'
board.arena[playerFinish] = 'W'
#need to remove computer player
break


if nomove == 1:
print "nomove"
else:
#redraw board
Clear_screen()
board.Print_Board()
time.sleep(2)#slow down move, because we know interpated languages are slow :)
while 1:
#computers move
answer = computer.Checkmemory(board.arena)


if answer[0] == "true":#found layout in memory
board.arena[computer.moves[answer[1]][0]] = "-"
board.arena[computer.moves[answer[1]][1]] = "B"

else:#did not find in memory
computer.memory.append(computer.currentMap)
randStart = computer.currentPawns[random.randint(0,len(computer.currentPawns)-1) ]
randMove = find_key(board.location,randStart) + random.randint(9,11)
if randMove == randStart + 10:
if board.arena[board.location[randMove]] == "-":
board.arena[board.location[randStart]] = "-"
board.arena[board.location[randMove]] = "B"
tempMove = [randStart,randMove]
computer.currentmove.append(tempMove)
break
else:

if Check_badMove(randMove) != 1:
if board.arena[board.location[randMove]] == "W":
board.arena[board.location[randStart]] = "-"
board.arena[board.location[randMove]] = "B"
tempMove = [randStart,randMove]
computer.currentmove.append(tempMove)
break




#redraw board
Clear_screen()
board.Print_Board()




#end game


if __name__ =="__main__":
main()

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