Theory

Setdefault

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Suppose we have the following short sentence and an empty dictionary:

sentence = 'Chess set is a chessboard and a set of chessmen.'
frequencies = {}

Now, we want to calculate the frequencies for each word in this sentence with the help of the dict.setdefault(). Put the steps below in the correct order.

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                frequencies.setdefault(word, 0)
              
                frequencies[word] += 1
              
                for word in sentence_list:
              
                sentence_list = sentence.lower().split()
              
                print(frequencies['chess'])
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