I need help with this please.

[pythonlearnery]

Write a function called userWords() that repeatedly asks the user to enter words until they enter the word "stop!". Every word the user enters should be stored in a nested list arranged by word-length such that all the 3-letter words are stored in a list at index 3 (for example). Return the nested list when complete. You may assume no word is larger than 9 letters.


This is what I have so far, but it will not work.

def userWords():
    words = []
    while True:
        word = str(input("Enter a word: "))
        if word == "stop!":
            break
        else:
            words.append(word)
    print(words)
userWords()

Thanks