tokenizer = Tokenizer(oov_token=”<OOV>”)
The word_index now returns the following output:

{‘<OOV>’: 1, ‘life’: 2, ‘us’: 3, ‘is’: 4, ‘so’: 5, ‘beautiful’: 6, ‘hope’: 7, ‘keeps’: 8, ‘going’: 9, ‘let’: 10, ‘celebrate’: 11}