Having trouble with an if statement with an or statement embedded in a for loop

random_characters = "adak"

for letter in random_characters:
    print(letter)
    if letter == "a":
        print("Vowel")

…emits as output:

a
Vowel
d
a
Vowel
k

If I only include one letter in the if statement the code runs fine. However, If I add one more through an or statement…

a
Vowel
d
Vowel
a
Vowel
k
Vowel

"Vowel" is printed after every iteration.

>Solution :

I’m going to read between the lines and guess that you have made the very common mistake of writing:

    if letter == "a" or "e":

because that would produce the results you see. The reason is, that is interpreted as

    if (letter == "a")  or  "e":

and since "e" is always True, the if is always taken. If you want to compare to multiple letters, use in:

    if letter in ("a","e","i","o","u"):

although in this case, you could also write:

    if letter in "aeiuo":