在python中需要portterstemmer的帮助

Question

我正在运行以下代码:

from nltk.tokenize import word_tokenize
from nltk.stem.porter import PorterStemmer
word = 'gardening'
tokens = word_tokenize(word.lower())
stemmer = PorterStemmer() # write code here
stemmed = [stemmer.stem(token) for token in tokens] # write your code here
print(stemmed)

我得到了输出['garden']，但我怎么能得到没有括号和引号的输出，即garden

我得到了输出['garden']，但我怎么能得到没有括号和引号的输出，即garden

Answer 1

您可以使用普通列表索引来获取结果。例如:

from nltk.tokenize import word_tokenize
from nltk.stem.porter import PorterStemmer
word = 'gardening'
tokens = word_tokenize(word.lower())
stemmer = PorterStemmer() # write code here
stemmed = [stemmer.stem(token) for token in tokens] # write your code here
# Print the first item in the list
print(stemmed[0])

:

garden

或者，对于较长的列表，可以使用for循环输出每个值:

from nltk.tokenize import word_tokenize
from nltk.stem.porter import PorterStemmer
word = 'gardening'
tokens = word_tokenize(word.lower())
stemmer = PorterStemmer() # write code here
stemmed = [stemmer.stem(token) for token in tokens] # write your code here
for s in stemmed:
print(s)

Answer 2

from nltk.tokenize import word_tokenize
from nltk.stem.porter import PorterStemmer
word = 'gardening'
tokens = word_tokenize(word.lower())
stemmer = PorterStemmer() # write code here
stemmed = [stemmer.stem(token) for token in tokens] # write your code here
for s in stemmed:
print(s)