我有一个句子清单
a = [['i am a testing'],['we are working on project']]
我正在尝试为列表中的所有句子创建单词词典。我试过了
vectorizer = CountVectorizer()
vectorizer.fit_transform(a)
coffee_dict2 = vectorizer.vocabulary_
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我收到一个错误 AttributeError: 'list' object has no attribute 'lower'
我期望的结果是一本字典
{'i': 1, 'am': 1, 'testing': 2}