阀杆功能错误：阀杆需要一个位置参数

Question

这里的stem函数显示了一个错误，说stem在循环中需要一个位置参数？在

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

您需要实例化一个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))