Print out large ASCII block letters using python

letters.py

letters = { "a":[ "###", "# #", "###", "# #", "# #"], "b":[ "###", "# #", "###", "# #", "###"], "c":[ "###", "#", "#", "#", "###"], "d":[ "##", "# #", "# #", "# #", "##"], "e":[ "###", "#", "###", "#", "###"], "f":[ "###", "#", "###", "#", "#"], "g":[ "###", "# #", "###", "  #", "###"], "h":[ "# #", "# #", "###", "# #", "# #"], "i":[ "###", " #", " #", " #", "###"], "j":[ "###", " #", " #", " #", "##"], "k":[ "# #", "##", "#", "##", "# #"], "l":[ "#", "#", "#", "#", "###"], "m":[ "# #", "###", "###", "# #", "# #"], "n":[ "###", "# #", "# #", "# #", "# #"], "o":[ "###", "# #", "# #", "# #", "###"], "p":[ "###", "# #", "###", "#", "#"], "q":[ "###", "# #", "###", "  #", "  #"], "r":[ "###", "# #", "##", "# #", "# #"], "s":[ "###", "#", "###", "  #", "###"], "t":[ "###", " #", " #", " #", " #"], "u":[ "# #", "# #", "# #", "# #", "###"], "v":[ "# #", "# #", "# #", "# #", " #"], "w":[ "# #", "# #", "# #", "###", "###"], "x":[ "# #", " #", " #", " #", "# #"], "y":[ "# #", "# #", "###", "  #", "###"], "z":[ "###", "  #", " #", "#", "###"], " ":[ " "], "1":[ " #", "##", " #", " #", "###"], "2":[ "###", "  #", "###", "#", "###"], "3":[ "###", "  #", "###", "  #", "###"], "4":[ "#", "#", "# #", "###", "  #"], "5":[ "###", "#", "###", "  #", "###"], "6":[ "###", "#", "###", "# #", "###"], "7":[ "###", "  # ", " #", " #", "#"], "8":[ "###", "# #", "###", "# #", "###"], "9":[ "###", "# #", "###", "  #", "###"], "0":[ "###", "# #", "# #", "# #", "###"], "!":[ " # ", " # ", " # ", "   ", " # "], "?":[ "###", "  #", " ##", "   ", " # "], ".":[ "   ", "   ", "   ", "   ", " # "], "]":[ "   ", "   ", "   ", "  #", " # "], "/":[ "  #", "  #", " # ", "# ", "# "], ":":[ "   ", " # ", "   ", " # ", "   "], "@":[ "###", "# #", "## ", "#  ", "###"], "'":[ " # ", " # ", "   ", "   ", "   "], "#":[ " # ", "###", " # ", "###", " # "] }
# letters stolen from here: http://www.stuffaboutcode.com/2013/08/raspberry-pi-minecraft-twitter.html

def print_letters(text):
    bigletters = []
    for i in text:
        bigletters.append(letters.get(i.lower(),letters[' ']))
    output = ['']*5
    for i in range(5):
        for j in bigletters:
            temp = ' '
            try:
                temp = j[i]
            except:
                pass
            temp += ' '*(5-len(temp))
            temp = temp.replace(' ',' ')
            temp = temp.replace('#','@')
            output[i] += temp
    return '\n'.join(output)

print print_letters('hello world')

This is python 3, he used python 2, 2 is now deprecated

I've tidied this up a bit.