Installing NLTK — NLTK 2.0 documentation

本文档指导如何在Mac或Unix系统上安装自然语言处理工具包NLTK及相关依赖库如Setuptools、Pip、Numpy等。具体步骤包括检查Python版本、安装Setuptools和Pip、可选安装Numpy、安装PyYAML及NLTK,并验证安装是否成功。

Installing NLTK — NLTK 2.0 documentation

Mac/Unix

  1. Open Finder>Applications>Utilities>Terminal and type python -V to find out what version of Python is installed
  2. Install Setuptools: Download the corresponding version of Setuptools from
    http://pypi.python.org/pypi/setuptools (scroll to the bottom, and pick the filename that contains the right version number and which has the extension .egg). Install it by typing sudo sh Downloads/setuptools-...egg, giving the location of the downloaded file.
  3. Install Pip: run sudo easy_install pip
  4. Install Numpy (optional): run sudo pip install -U numpy
  5. Install PyYAML and NLTK: run sudo pip install -U pyyaml nltk
  6. Test installation: run python then type import nltk
LangChainDeprecationWarning: Importing DirectoryLoader from langchain.document_loaders is deprecated. Please replace deprecated imports: from langchain.document_loaders import DirectoryLoader with new imports of: from langchain_community.document_loaders import DirectoryLoader You can use the langchain cli to automatically upgrade many imports. Please see documentation here https://python.langchain.com/docs/versions/v0_2/ from langchain.document_loaders import DirectoryLoader 0%| | 0/2 [00:00<?, ?it/s]libmagic is unavailable but assists in filetype detection. Please consider installing libmagic for better results. [nltk_data] Error loading averaged_perceptron_tagger_eng: <urlopen [nltk_data] error [Errno 11004] getaddrinfo failed> [nltk_data] Error loading punkt_tab: <urlopen error [Errno 11004] [nltk_data] getaddrinfo failed> Error loading file file\txt\testdeepseek.txt 50%|█████ | 1/2 [00:04<00:04, 4.98s/it]Traceback (most recent call last): File “C:\Users\Administrator\AppData\Local\Programs\Python\Python310\lib\site-packages\nltk\data.py”, line 579, in find raise LookupError(resource_not_found) LookupError: Resource punkt_tab not found. Please use the NLTK Downloader to obtain the resource: import nltk nltk.download(‘punkt_tab’) For more information see: https://www.nltk.org/data.html Attempted to load tokenizers/punkt_tab/english/ Searched in: - ‘C:\Users\Administrator/nltk_data’ - ‘C:\Users\Administrator\AppData\Local\Programs\Python\Python310\nltk_data’ - ‘C:\Users\Administrator\AppData\Local\Programs\Python\Python310\share\nltk_data’ - ‘C:\Users\Administrator\AppData\Local\Programs\Python\Python310\lib\nltk_data’ - ‘C:\Users\Administrator\AppData\Roaming\nltk_data’ - ‘C:\nltk_data’ - ‘D:\nltk_data’ - ‘E:\nltk_data’ 50%|█████ | 1/2 [00:05<00:05, 5.06s/it]
03-18
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