python - error installing nltk supporting packages : nltk.download()

Question

I have installed the nltk package. Following that I am trying to download the supporting packages using nltk.download() and am getting error:

[Errno 11001] getaddrinfo

My machine / software details are:

OS: Windows 8.1 Python: 3.3.4 NLTK Package: 3.0

Below are the commands run in python:

Python 3.3.4 (v3.3.4:7ff62415e426, Feb 10 2014, 18:13:51) [MSC v.1600 64 bit (AMD64)] on win32
Type "copyright", "credits" or "license()" for more information.

import nltk

nltk.download()
showing info http://nltk.github.com/nltk_data/
True

nltk.download("all")
[nltk_data] Error loading all: <urlopen error [Errno 11001]
[nltk_data]     getaddrinfo failed>
False

It looks like it is going to http://nltk.github.com/nltk_data/ whereas it should Ideally try to get the data from http://www.nltk.org/nltk_data/.

On another machine when we type http://nltk.github.com/nltk_data/ in the browser, it redirects to http://www.nltk.org/nltk_data/. I am not understanding why the redirection is not happening on my laptop.

I feel that this might be the issue.

Kindly help.

I have added the command prompt screenshot. Need help..

Regards, Bonson

Answer 1

Try below code. It has downloaded package as expected

import nltk
import ssl

try:
    _create_unverified_https_context = ssl._create_unverified_context
except AttributeError:
    pass
else:
    ssl._create_default_https_context = _create_unverified_https_context

nltk.download()

Looks before link was broken whicvh been fixed by ssl.

Note :- MAC been used