Two ways_count vowels

print ("************************************************")

def count_vowels (cad):
    return sum(c in {"a", "A", "e", "E", "i", "I", "o", "O", "u", "U"} for c in cad)
#PROG. PPAL
cad = raw_input("")
print count_vowels (cad)

print ("************************************************")

def count_vowels(cad):
    voc = 0
    for c in cad:
        if c == 'a' or c == 'e' or c == 'i' or c =='o' or c == 'u' or c == 'A' or c == 'E' or c == 'I' or c =='O' or c == 'U':
            voc=voc+1
    return voc

#PROG. PPAL
cad = raw_input("")
print count_vowels(cad)

print ("************************************************")