遍历字典的 values()

Question

I am trying to tokenize each value of dictionary by using for loop but i am getting an error: 'float' object is not iterable. My code is:

for doc, answers in answers.items():
    for answer in answers:
        if doc not in tokenized_answers:
            tokenized_answers[doc] = [tokenize(answer, tokenizer)]
        else:
            tokenized_answers[doc].append(tokenize(answer, tokenizer))

It's showing error in line: for answer in answers

how can i iterate through the values of dict.values()?

Answer 1

for doc, something_other_than_answers in answers.items():
   ...

Answer 2

It's look like one of your answers is not an iterable to avoid the error and to run only on iterables you can make a try except to check for TypeError

 for doc, answers_items in answers.items():
    try: 
        for answer in answers_items:
            if doc not in tokenized_answers:
                tokenized_answers[doc] = [tokenize(answer, tokenizer)]
            else:
                tokenized_answers[doc].append(tokenize(answer, tokenizer))
    except TypeError:
        continue

That will skip the answers value from the for loop in case it's not an iterable like float.