Python String Replace

def replacer(word):
    vowels = ('a', 'e', 'i', 'o', 'u')
    const = ('b','c','d','f','g','h','j','k','l','m','n','p','q','r','s','t','v','w','x','y','z')
    for c in word:
        if c.lower() in vowels:
            word = word.replace(c,"#")
        if c.lower() in const:
            word = word.replace(c,"@")
    print(word)

name = raw_input('Enter your name: ')
replacer(name)