I'm having problems with my code where I'm trying to add to a new list all words that match a given list (in order at the end to have a basic sentiment analysis code). I have tried passing it through Python Tutor but have had no success. In short, I'm expecting an output of the word great but instead get an empty list.

def remove_punc_and_split (wordlist) : 
    punc = '.!?/:;,{}'  #the punctuation to be removed
    no_punc = "" 
    for char in wordlist :
        if char not in punc :
            no_punc = no_punc   char.lower()
    new_word_list = no_punc.split() #dividing the words into seperate strings in a list
    return new_word_list

def sentiment1 (wordlist1):
    positive_words = ["good","awesome","excellent","great"]
    wordlist1 = remove_punc_and_split (comment_1)
    pos_word_list = []                                                               
    for postive_words in wordlist1 :
        if wordlist1[0] == positive_words :
            pos_word_list.append(wordlist1)
            print(wordlist1)
    return pos_word_list
    
comment_1 = 'Good for the price, but poor Bluetooth connections.'
sentiment1(comment_1)

CodePudding user response：

One approach can be to use set.intersection method for this to find common values between positive_words and the input list. I also updated it to pass the lowercased sentence wordlist1.lower() to the remove punc function, because you want to do a case-insensitive match against positive_words; so first you will need to lowercase all characters in the sentence before you can check if there are any positive words.

def sentiment1(wordlist1):
    positive_words = {"good", "awesome", "excellent", "great"}
    wordlist1 = remove_punc_and_split(wordlist1.lower())
    pos_word_list = list(positive_words.intersection(wordlist1))
    return pos_word_list