Need help in solving this task, spent too much time.

def disemvowel(word):
  for letter in word:
    if letter.upper() in ('A', 'E', 'I', 'O', 'U'):
      print(letter)


disemvowel('aditya')

def disemvowel(word):
  for letter in word:
    if letter.upper() not in ('A', 'E', 'I', 'O', 'U'):
      print(letter)


disemvowel('aditya')

vowels = ('a', 'e', 'i', 'o', 'u', 'A', 'I', 'E', 'O', 'U')

def remove_vowels(text):
    for char in text:
        if char in vowels:
            text = text.replace(char, '')
    return text

text = input("Enter word: ")
print(remove_vowels(text))

def disemvowel(word):
    word=word.upper() # Using upper() here means you won't get back the same capitalization at the end.
    print(word) # ADITYA
    # Looks like list is a keyword, so you'll need to rename this.
    list=word.split(' ') # You're trying to split on a space, and there are none.
    print(str(list)) # ['ADITYA']
    while 'A'or'E'or'I'or'O'or'U' in list: # Your list only has one element, the upper word.
        # So none of the following will do what you're expecting.
        list.remove('A')
        list.remove('E')
        list.remove('I')
        list.remove('O')
        list.remove('U')
    new=' '.join(list) # You don't have any elements to join.
    print(new) # I think you need a return statement in here somewhere for this challenge.
disemvowel('aditya')

# I believe you may assume you are only getting a single word as input.
def disemvowel(word):
    vowels = "aeiouAEIOU" # Make sure you check for both upper and lower case.
    my_list = list(word) # Here is that list keyword, converting your string to a list.
    for char in word: # Iterate through each character in the word.
        if char in vowels: # If the current character is in our list of vowels...
            my_list.remove(char) # ...remove it.
    word = ''.join(my_list) # Join your list back into a string, using an empty separator. 
    return word # Don't forget to return the word at the end.