<filename>check-vowels.py

def check(string):
    string = string.lower()
    vowels = set('aeiou')
    s = set({})

    for char in string :
        if char in vowels :
            s.add(char)
        else :
            pass

    if len(s) == len(vowels) :
        print("Accepted")
    else :
        print("Not Accepted")

if __name__ == "__main__" :
    string = "SEEquoial"
    check(string)
<filename>check-vowels.py

def check(string):
    string = string.lower()
    vowels = set('aeiou')
    s = set({})

    for char in string :
        if char in vowels :
            s.add(char)
        else :
            pass

    if len(s) == len(vowels) :
        print("Accepted")
    else :
        print("Not Accepted")

if __name__ == "__main__" :
    string = "SEEquoial"
    check(string)