词干函数错误：词干需要一个位置自变量

Question

在这里，词干函数显示错误，表示词干需要循环使用一个位置自变量？

from nltk.stem import PorterStemmer as ps 

text='my name is pythonly and looking for a pythonian group to be formed by me iteratively'

words = word_tokenize(text)

for word in words:
    print(ps.stem(word))

Answer 1

您需要实例化PorterStemmer对象

from nltk.stem import PorterStemmer as ps
from nltk.tokenize import word_tokenize

stemmer = ps()

text = 'my name is pythonly and looking for a pythonian group to be formed by me iteratively'
words = word_tokenize(text)
for t in words:
    print(t, stemmer.stem(t))