我刚刚在 CentOS 服务器上安装了 nltk。但是当我进入 python 并尝试导入 nltk 时，出现以下错误。
有什么想法吗？
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.6/site-packages/nltk/__init__.py", line 114, in <module>
from nltk.collocations import *
File "/usr/lib/python2.6/site-packages/nltk/collocations.py", line 38, in <module>
from nltk.util import ngrams
File "/usr/lib/python2.6/site-packages/nltk/util.py", line 1361
d = {k: _default_to_regular(v) for k, v in d.items()}
最佳答案
从 3.1 版开始，NLTK 不再支持 Python < 2.7，来自 http://www.nltk.org/news.html :
NLTK 3.1 released : October 2015
Add support for Python 3.5, drop support for Python 2.6, sentiment analysis package and several corpora, improved POS tagger, Twitter package, multi-word expression tokenizer, wrapper for Stanford Neural Dependency Parser, improved translation/alignment module including stack decoder, skipgram and everygram methods, Multext East Corpus and MTECorpusReader, minor bugfixes and enhancements For details see: https://github.com/nltk/nltk/blob/develop/ChangeLog
由于字典理解是 Python >=2.7 的一项功能，https://www.python.org/dev/peps/pep-0274/ , 使用 NLTK >=3.1 会在发生字典理解时导致错误。
强烈建议升级到 Python >= 2.7:https://github.com/h2oai/h2o-2/wiki/Installing-python-2.7-on-centos-6.3.-Follow-this-sequence-exactly-for-centos-machine-only
或者使用 conda 也会简化问题:https://docs.continuum.io/anaconda/install#linux-install
但如果确实需要 Python 2.6:
pip install -U nltk==3.0.5
关于python - 导入 nltk 无法理解的错误，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/36038827/