Accessing value in list by function

Question

I want to access the value of the term 'just' but somehow it gives the error: 'NoneType' object is not subscriptable. How can I solve this

def count_words(word_list):
    
    "Count word frequencies of words in a list."
    
    cnt_dict = dict()
    
    for word in word_list:
        if word in cnt_dict:
            cnt_dict[word] += 1
        else:
            cnt_dict[word] = 1
    print(cnt_dict)
  
my_words = ['this', 'is', 'just',
            'a', 'test', 'example', 'to',
           'test', 'some', 'example', 'code']
cnt = count_words(my_words)
cnt['just']

You are not returning anything in your function `count_words`. Try replacing `print(cnt_dict)` with `return cnt_dict`. — j1-lee, Oct 20 '22 at 19:08

score 0 · Answer 1 · answered Oct 20 '22 at 19:13

0

You need to return the dict at the end of your function. End your function with return cnt_dict.

answered Oct 20 '22 at 19:13

jprebys

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score 0 · Answer 2 · answered Oct 20 '22 at 19:14

It works!

def count_words(word_list):
    
    "Count word frequencies of words in a list."
    
    cnt_dict = dict()
    
    for word in word_list:
        if word in cnt_dict:
            cnt_dict[word] += 1
        else:
            cnt_dict[word] = 1
    return cnt_dict
    
  
my_words = ['this', 'is', 'just',
            'a', 'test', 'example', 'to',
           'test', 'some', 'example', 'code']
cnt = count_words(my_words)
print(cnt["just"])

Accessing value in list by function

2 Answers2