validkeys = (1,2,3)
keyGenDict={'keys':[1,2,3],1:'blue',2:'fast',3:'test','key':2}
def show_key (key):
if(key in validkeys):
keyVal = (keyGenDict["keys"])[key-1]
print "Key = " + keyGenDict[keyVal]
else:
print("Invalid key")
val = keyGenDict["key"]
show_key(val)