Rock paper scissors with simple AI

RPS.py

from random import *

def one_liner():
    while raw_input('You %s. ' % choice('win lose draw'.split())).lower() not in 'stop exit quit'.split(): party_time = True
  
def pro_strats():
    wins  = dict(zip('rock paper scissors'.split(), 'scissors rock paper'.split())) #what beats what
    loses = dict(zip('rock paper scissors'.split(), 'paper scissors rock'.split())) #what loses to what
    hist = list()
    clever = False
    win_streak, win_ct, loss_ct, draw_ct = 0, 0, 0, 0
    
    while True:
        # Input
        player_move = raw_input('Rock paper or scissors? ').lower()
        
        # Check input
        if player_move not in 'rock paper scissors r p s 1 2 3'.split():
            if player_move in 'stop exit quit'.split():
                break
            else:
                print 'You must choose a valid move!'
                
        # Do game logic
        else:
            # Account for shorthand moves
            if player_move in 'r p s 1 2 3'.split():
                if player_move == 'r' or player_move == '1': player_move = 'rock'
                if player_move == 'p' or player_move == '2': player_move = 'paper'
                if player_move == 's' or player_move == '3': player_move = 'scissors'
            
            # Make the computer move
            if not randint(0, 30):
                computer_move = 'rock'
            elif len(hist) < 4:
                computer_move = choice('rock paper scissors'.split())
            elif clever:
                if (randint(0, 3)):
                    computer_move = loses[hist[-1]]
                else:
                    computer_move = choice('rock paper scissors'.split())
            elif hist[-2] == hist[-3] and hist[-4] == hist[-3] and loses[hist[-1]] == hist[-2]:
                clever = True
                computer_move = hist[-1] 
            elif hist[-1] == hist[-2] and hist[-1] == hist[-3]:
                if randint(0, 3):
                    computer_move = loses[hist[-1]]
                else:
                    computer_move = choice('rock paper scissors'.split())
            elif hist[-1] == hist[-2] and hist[-1] != hist[-3]:
                if randint(0, 2):
                    computer_move = wins[hist[-1]]
                else:
                    computer_move = choice('rock paper scissors'.split())
            elif win_streak > 3:
                if randint(0, 1) == 0:
                    computer_move = choice('rock paper scissors'.split())
                else:
                    computer_move = loses[hist[-1]]
            elif win_streak == 2:
                if randint(0, 2) == 0:
                    computer_move = hist[-1]
                else:
                    computer_move = loses[hist[-1]]
            else:
                if randint(0, 4) == 0:
                    computer_move = wins[hist[-1]]
                else:
                    computer_move = choice('rock paper scissors'.split())
            
            # Update player's move history and check if they think they're clever
            hist.append(player_move)
            if clever and hist[-1] != hist[-2] and wins[hist[-1]] != hist[-2]:
                clever = False
            
            # Determine result
            result = str()
            if player_move == computer_move:
                result = 'draw'
                draw_ct += 1
            elif wins[player_move] == computer_move:
                result = 'win'
                win_ct += 1
                win_streak += 1
            else:
                result = 'lose'
                win_streak = 0
                loss_ct += 1
              
            # Output  
            print 'You throw %s, computer throws %s, you %s!' % (player_move, computer_move, result)
    
    print 'Wins: %i Losses: %i, Draws: %i' % (win_ct, loss_ct, draw_ct)

pro_strats()