Nltk: 试图阻止单词“ oing”时出现“ IndexError：字符串索引超出范围”

我收到"aed"这个错误：

from nltk.stem.porter import PorterStemmer
from nltk.corpus import stopwords
stemmer = PorterStemmer()
stemmer.stem('aed')

错误是：

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/peter.hurford/.virtualenvs/rex/lib/python2.7/site-packages/nltk/stem/porter.py", line 665, in stem
    stem = self._step1b(stem)
  File "/Users/peter.hurford/.virtualenvs/rex/lib/python2.7/site-packages/nltk/stem/porter.py", line 376, in _step1b
    lambda stem: (self._measure(stem) == 1 and
  File "/Users/peter.hurford/.virtualenvs/rex/lib/python2.7/site-packages/nltk/stem/porter.py", line 258, in _apply_rule_list
    if suffix == '*d' and self._ends_double_consonant(word):
  File "/Users/peter.hurford/.virtualenvs/rex/lib/python2.7/site-packages/nltk/stem/porter.py", line 214, in _ends_double_consonant
    word[-1] == word[-2] and
IndexError: string index out of range

安装：

pip install nltk
python -m nltk.downloader -d

版：

import nltk
nltk.__version__ # '3.2.2'

https://github.com/nltk/nltk/issues/1581的副本

该错误是在3.2.2版中引入的，已在master上修复。 您可以使用develop或版本3.2.1摆脱该错误。

固定关闭吗？

那么，问题是否已解决？

＃1582应该已经解决了这个问题😉

>>> import nltk
>>> nltk.__version__
'3.2.5'

>>> from nltk import PorterStemmer
>>> porter = PorterStemmer()
>>> porter.stem('oing')
u'o'