Detailed explanation of nltk library installation in Linux and windows systems

1. Introduction to nltk

        NLTK (Natural Language Toolkit) is a Python library for natural language processing and text analysis.

        NLTK supports many natural language processing tasks, such as text classification, syntax analysis, part-of-speech tagging, text corpus processing, and more.

2. nltk installation

pip install nltk

3. nltk_data installation

wget https://gitcode.net/mirrors/nltk/nltk_data/-/archive/gh-pages/nltk_data-gh-pages.zip

unzip nltk_data-gh-pages.zip

4. View the file retrieval path

Create a new py file:

import nltk

nltk.data.find('.')

execute program:

5. Put the thesaurus in the search path

You can put the files under the packages path in any path where the above program reports an error.

cp -R nltk_data-gh-pages/packages/* /root/nltk_data/

Note: The next step is very important! ! !

Find the directory where punkt is located in nltk-data:

Compress the punkt.zip archive, and then delete it!

6. nltk library test

Python sample code:

import nltk

# 下载词性标注器
#nltk.download('averaged_perceptron_tagger')

text = "I love natural language processing"
tokens = nltk.word_tokenize(text)
tags = nltk.pos_tag(tokens)

# 输出分类结果
for word, pos in tags:
    print(word, pos)

Reference blog post:

Resource punkt not found.&&nltk.download() failed to download_punkt.zip could not be downloaded_IT one of the little guy's blog-CSDN blog