Cerin
Cerin

Reputation: 64789

Unable to install NLTK with Python 3.7

The NLTK docs say it supports Python 3.7. However, when I try to install it with:

virtualenv -p python3.7 .env
. .env/bin/activate
pip install nltk

I get the error:

Collecting nltk
  Using cached https://files.pythonhosted.org/packages/f6/1d/d925cfb4f324ede997f6d47bea4d9babba51b49e87a767c170b77005889d/nltk-3.4.5.zip
    ERROR: Command errored out with exit status 1:
     command: /path/to/my/project/.env/bin/python3.7 -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-12ut35ws/nltk/setup.py'"'"'; __file__='"'"'/tmp/pip-install-12ut35ws/nltk/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base pip-egg-info
         cwd: /tmp/pip-install-12ut35ws/nltk/
    Complete output (1 lines):
    error in nltk setup command: 'install_requires' must be a string or list of strings containing valid project/version requirement specifiers; Expected version spec in singledispatch; python_version < "3.4" at ; python_version < "3.4"
    ----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

The error message sounds like NLTK only supports Python < 3.4, but that doesn't make any sense. What am I doing wrong?

Upvotes: 1

Views: 2616

Answers (2)

Simba
Simba

Reputation: 27698

It is because the package format was not supported by the distutils, which indicates the package tools may be too old.

  1. Upgrade pip in the virtual environment.

    pip install -U pip
    pip install -U setuptools
    
  2. Retry to install nltk.

    . .env/bin/activate
    pip install nltk
    

If this still doesn't work. Provide log from pip install nltk -v.

Upvotes: 3

Kalana
Kalana

Reputation: 6173

  1. First of all you have to upgrade your pip by using this command

    python -m pip install –upgrade pip

  2. First of all you have to navigate to the location of the pip folder

    C:\Users\Admin>cd C:\Python\Scripts

  3. Then run this command

    pip3 install nltk

hope it will work!

Upvotes: 1

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