我一直收到此错误：类型错误：lemmatize() 缺少 1 个必需的位置参数：'word'

Question

lemmatizer = WordNetLemmatizer
intents = json.loads(open('intents.json').read())
words = []
classes = []
documents = []
ignore_letters = ['?', '!', '.', ',']
for intent in intents['intents']:
for pattern in intent['patterns']:
word_list = nltk.word_tokenize(pattern)
words.extend(word_list)
documents.append((word_list, intent['tag']))
if intent['tag'] not in classes:
classes.append(intent['tag'])
words = [lemmatizer.lemmatize(word) for word in words if word not in ignore_letters]
words = sorted(set(words))

lemmatizer.lemmatize(word)中有一个错误，它一直在说-

"；参数"word"未填充">。准确的错误是-

TypeError: lemmatize() missing 1 required positional argument: 'word'

Answer 1

在某些情况下，word的可疑值可能是None，因此您可以在if子句中添加此情况：

words = [lemmatizer.lemmatize(word) for word in words if word and word not in ignore_letters]

希望有帮助：(

---

我尝试了下面的代码，在您的代码中查看上面的行是正确的。但由于有些方法的定义(WordNetLemmatizer.lemmatize、nltk.word_tokenize(是未知的，因此您可能需要检查这些定义。

>>> ignore_letters = ['?', '!', '.', ',']
>>> words = ['asd']
>>> def f(x):
pass
>>> words = [f(word) for word in words if word not in ignore_letters]
>>> words
[None]

如果我将f更改为

>>> def f(x, word):
pass

将会出现与您遇到的错误消息相同的错误消息。

Answer 2

同样的事情也发生在我身上。你只需要在"WordNetLemmatizer"后面添加括号"(("就可以正确地实例化它。

应为：

lemmatizer = WordNetLemmatizer()