When using .index in a list only returns first time it appears in the array

Question

sentence = \"ask not what your country can do for you ask what you can do for your country\"
sentList = sentence.split()

print(sentence)
userWord = input(\"Pick a word          


        

Answer 1

list.index accepts additional start index (and end index). Pass the index to find next matched item index.

...

if userWord in sentList:
    i = 0
    while True:
        try:
            i = sentList.index(userWord, i)  # <---
        except ValueError:  # will raise ValueError unless the item is found
            break
        i += 1
        print("{} appears in the sentence in the {}th position".format(
            userWord, i
        ))

else:
     ....