Juego de piedra papel o tijera con verbos

Papel.py

#!/usr/bin/env python
# -*-coding:utf-8-*-
import time
from time import sleep
import random

sus="-"*35
action = ""
win = True
depo=["piedra","papel","tijera", "lagarto", "spock"]
while True:
    x=raw_input("piedra, papel, tijera, lagarto, spock, \
    'salir' si quieres terminar: ")
    if x != "salir" and x not in depo:
        print ("No hagas trampa!")
        continue
    if x == "salir":
        exit()
    pc=random.choice(depo)
    sleep(0.5)
    print (("Computadora elijio {}.").format(pc))
    if x==pc:
        sleep(0.5)
        print (("\nEmpate.\n{}").format(sus))
    elif x=="piedra":
        if pc=="tijera":
            win = True
            action = "aplasta"
        elif pc=="lagarto":
            win = True
            action = "aplasta"
        elif pc=="papel":
            win = False
            action = "tapa"
        elif pc=="spock":
            win = False
            action = "vaporiza"
    elif x=="papel":
        if pc=="piedra":
            win = True
            action = "tapa"
        elif pc=="spock":
            win = True
            action = "desautoriza"
        elif pc=="lagarto":
            win = False
            action = "devora"
        elif pc=="tijera":
            win = False
            action = "corta"
    elif x=="tijera":
        if pc=="papel":
            win = True
            action = "corta"
        elif pc=="lagarto":
            win = True
            action = "decapita"
        elif pc=="spock":
            win = False
            action = "rompe"
        elif pc=="piedra":
            win = False
            action = "aplasta"
    elif x=="lagarto":
        if pc =="spock":
            win = True
            action = "envenena"
        elif pc =="papel":
            win = True
            action = "devora"
        elif pc=="tijeras":
            win = False
            action = "decapita"
        elif pc=="piedra":
            win = False
            action = "aplasta"
    elif x=="spock":
        if pc=="tijeras":
            win = True
            action="rompe"
        elif pc=="piedra":
            win = True
            action="vaporiza"
        elif pc=="lagarto":
            win = False
            action = "envenena"
        elif pc=="papel":
            win = False
            action = "desautoriza"
    sleep(0.5)
    if win:
        print (("\nGanaste. {} {} {}\n{}").format(x, action, pc, sus))
    else:
        print (("\Perdiste. {} {} {}\n{}").format(pc, action, x, sus))

input()