What is wrong with my code ?

Question

#counting number of vowels
word = str(input("Enter a word : " ))
vowel = "a" or "e" or "i" or "o" or "u"
numvowel=0
for vowel in word :
numvowel +=1
print ("Number of vowels : " , numvowel)

Answer 1

1. Unnecessary str cast on input, which is already of a string class.
2. vowel variable should be defined as a collection, not as a logical expression (which gets resolved right away)

Answer 2

1. input() returns a string - no need to cast str on it
2. You could define vowel as a collection, like a list, tuple or even a string, to be able to iterate through it in your for loop. Now it is a logical expression which gets resolved to "a" (it is the first one which is True and so 'or' takes it right away) -- this is not the case for using 'or' (or any other logical expression for that matter).

Answer 3

@Kuba Siekierzynski .. can you explain my mistake a bit more ?