Acronym expander

acronym.py

abbvr = {
    "lol": "laugh out loud",
    "dw": "don't worry",
    "hf": "have fun",
    "gg": "good game",
    "brb": "be right back",
    "g2g": "got to go",
    "wtf": "what the fuck",
    "wp": "well played",
    "gl": "good luck",
    "imo": "in my opinion"
    }

def main():
    msg = raw_input(">> ")
    words = []
    punctuation = []
    temp = ""
    count = 0
    for char in msg:
        if char.isalnum():
            temp += char
            if char == msg[len(msg)-1] and count == len(msg)-1:
                words.append(temp)
        elif char == "." or char == "," or char == "!" or char == ":" or char == ";":
            punctuation.append(char)
            if temp != "":
                words.append(temp)
                temp = ""
        else:
            punctuation.append(char)
            words.append(temp)
            temp = ""
        count += 1
    #end for
    new_word = ""
    count = 0
    for word in words:
        if word in abbvr.keys():
            new_word += abbvr[word]
        else:
            new_word += word
        try:
            new_word += punctuation[count]
        except IndexError:
            continue
        count +=1
    print new_word
if __name__ == "__main__":
   main() 

http://www.reddit.com/r/dailyprogrammer/comments/2ptrmp/20141219_challenge_193_easy_acronym_expander/