Bootleg Text-To-Speech in Python

#"Rec" folder is seperate.

import os, sys, pygame
from time import sleep as s
from pygame.locals import *
import pygame.mixer         #no games here, just using pygame for audio purposes

print "'@quit' to exit\n\n\n"

resdir = os.getcwd()+"/Rec/"
#letters = "abcdefghijklmnopqrstuvwxyz " #I don't feel like importing string
allowed = [i for i in "1234567890abcdefghijklmnopqrstuvwxyz !@$&?%*()/+-=_^.#><:;"]

soundlink = {
"1":"1.wav",
"2":"2.wav",
"3":"3.wav",
"4":"4.wav",
"5":"5.wav",
"6":"6.wav",
"7":"7.wav",
"8":"8.wav",
"9":"9.wav",
"0":"0.wav",
"a":"a.wav",
"b":"b.wav",
"c":"c.wav",
"d":"d.wav",
"e":"e.wav",
"f":"f.wav",
"g":"g.wav",
"h":"h.wav",
"i":"i.wav",
"j":"j.wav",
"k":"k.wav",
"l":"l.wav",
"m":"m.wav",
"n":"n.wav",
"o":"o.wav",
"p":"p.wav",
"q":"q.wav",
"r":"r.wav",
"s":"s.wav",
"t":"t.wav",
"u":"u.wav",
"v":"v.wav",
"w":"w.wav",
"x":"x.wav",
"y":"y.wav",
"z":"z.wav",
" ":"space.wav",
"!":"exclamation.wav",
"?":"question.wav",
"@":"at.wav",
"$":"dollar.wav",
"&":"and.wav",
"%":"percent.wav",
"*":"times.wav",
"(":"openp.wav",
")":"closedp.wav",
"/":"dividedby.wav",
"+":"plus.wav",
"-":"minus.wav",
"=":"equals.wav",
"_":"underscore.wav",
".":"point.wav",
"^":"carat.wav",
"#":"number.wav",
">":"greaterthan.wav",
"<":"lessthan.wav",
":":"colon.wav",
";":"semicolon.wav"

#no brackets :(
#no braces :(
#no tilde :(
#no quote :(
#no apostrophe :(
#no vertical line :(
#no backslash :(
#no comma :(
#no Unicode characters :(

}
pygame.mixer.init()
loop = 1
while loop == 1:
    request = raw_input("Speech > ").lower()

    if request.lower() == "@quit":
        loop = 0

    elif request.lower() == "@mmmmm":                   ######
        pygame.mixer.Sound(resdir+"mmm.wav").play()          #
    elif request.lower() == "@augh":                         #
        pygame.mixer.Sound(resdir+"ow.wav").play()           #####--- Because why not?
    elif request.lower() == "@slop":                         #
        pygame.mixer.Sound(resdir+"squish.wav").play()  ######


    else:
        test = []
        for i in request:
            if i in allowed:
                test.append(str(i))     #"sanitizing" the input. allowing only the specified characters
        request = test

        #print test

        for i in test:
            audio = resdir+soundlink[i] #path to file
            length = pygame.mixer.Sound(audio).get_length() #length of sound file in seconds
            pygame.mixer.Sound(audio).play() #play the sound
            s(length/1.5) #wait the length of sound