How do I download NLTK data?

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Updated answer:NLTK works for 2.7 well. I had 3.2. I uninstalled 3.2 and installed 2.7. Now it works!!

I have installed NLTK and tried to download NLTK Data. What I did was to follow the instrution on this site: http://www.nltk.org/data.html

I downloaded NLTK, installed it, and then tried to run the following code:

>>> import nltk
>>> nltk.download()

It gave me the error message like below:

Traceback (most recent call last):
  File "<pyshell#6>", line 1, in <module>
    nltk.download()
AttributeError: 'module' object has no attribute 'download'
 Directory of C:\Python32\Lib\site-packages

Tried both nltk.download() and nltk.downloader(), both gave me error messages.

Then I used help(nltk) to pull out the package, it shows the following info:

NAME
    nltk

PACKAGE CONTENTS
    align
    app (package)
    book
    ccg (package)
    chat (package)
    chunk (package)
    classify (package)
    cluster (package)
    collocations
    corpus (package)
    data
    decorators
    downloader
    draw (package)
    examples (package)
    featstruct
    grammar
    help
    inference (package)
    internals
    lazyimport
    metrics (package)
    misc (package)
    model (package)
    parse (package)
    probability
    sem (package)
    sourcedstring
    stem (package)
    tag (package)
    test (package)
    text
    tokenize (package)
    toolbox
    tree
    treetransforms
    util
    yamltags

FILE
    c:\python32\lib\site-packages\nltk

I do see Downloader there, not sure why it does not work. Python 3.2.2, system Windows vista.

TL;DR

To download a particular dataset/models, use the nltk.download() function, e.g. if you are looking to download the punkt sentence tokenizer, use:

$ python3
>>> import nltk
>>> nltk.download('punkt')

If you’re unsure of which data/model you need, you can start out with the basic list of data + models with:

>>> import nltk
>>> nltk.download('popular')

It will download a list of “popular” resources, these includes:

<collection id="popular" name="Popular packages">
      <item ref="cmudict" />
      <item ref="gazetteers" />
      <item ref="genesis" />
      <item ref="gutenberg" />
      <item ref="inaugural" />
      <item ref="movie_reviews" />
      <item ref="names" />
      <item ref="shakespeare" />
      <item ref="stopwords" />
      <item ref="treebank" />
      <item ref="twitter_samples" />
      <item ref="omw" />
      <item ref="wordnet" />
      <item ref="wordnet_ic" />
      <item ref="words" />
      <item ref="maxent_ne_chunker" />
      <item ref="punkt" />
      <item ref="snowball_data" />
      <item ref="averaged_perceptron_tagger" />
    </collection>

EDITED

In case anyone is avoiding errors from downloading larger datasets from nltk, from https://stackoverflow.com/a/38135306/610569

$ rm /Users/<your_username>/nltk_data/corpora/panlex_lite.zip
$ rm -r /Users/<your_username>/nltk_data/corpora/panlex_lite
$ python

>>> import nltk
>>> dler = nltk.downloader.Downloader()
>>> dler._update_index()
>>> dler._status_cache['panlex_lite'] = 'installed' # Trick the index to treat panlex_lite as it's already installed.
>>> dler.download('popular')

Updated

From v3.2.5, NLTK has a more informative error message when nltk_data resource is not found, e.g.:

>>> from nltk import word_tokenize
>>> word_tokenize('x')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/l/alvas/git/nltk/nltk/tokenize/__init__.py", line 128, in word_tokenize
    sentences = [text] if preserve_line else sent_tokenize(text, language)
  File "/Users//alvas/git/nltk/nltk/tokenize/__init__.py", line 94, in sent_tokenize
    tokenizer = load('tokenizers/punkt/{0}.pickle'.format(language))
  File "/Users/alvas/git/nltk/nltk/data.py", line 820, in load
    opened_resource = _open(resource_url)
  File "/Users/alvas/git/nltk/nltk/data.py", line 938, in _open
    return find(path_, path + ['']).open()
  File "/Users/alvas/git/nltk/nltk/data.py", line 659, in find
    raise LookupError(resource_not_found)
LookupError: 
**********************************************************************
  Resource punkt not found.
  Please use the NLTK Downloader to obtain the resource:

  >>> import nltk
  >>> nltk.download('punkt')

  Searched in:
    - '/Users/alvas/nltk_data'
    - '/usr/share/nltk_data'
    - '/usr/local/share/nltk_data'
    - '/usr/lib/nltk_data'
    - '/usr/local/lib/nltk_data'
    - ''
**********************************************************************

Related

Try

nltk.download('all')

this will download all the data and no need to download individually.

Install Pip: run in terminal : sudo easy_install pip

Install Numpy (optional): run : sudo pip install -U numpy

Install NLTK: run : sudo pip install -U nltk

Test installation: run: python

then type : import nltk

To download the corpus

run : python -m nltk.downloader all

Do not name your file nltk.py I used the same code and name it nltk, and got the same error as you have, I changed the file name and it went well.

This worked for me:

nltk.set_proxy('http://user:[email protected]:8080')
nltk.download()

Please Try

import nltk

nltk.download()

After running this you get something like this

NLTK Downloader
---------------------------------------------------------------------------
   d) Download   l) List    u) Update   c) Config   h) Help   q) Quit
---------------------------------------------------------------------------

Then, Press d

Do As Follows:

Downloader> d all

You will get following message on completion, and Prompt then Press q
Done downloading collection all

you can’t have a saved python file called nltk.py because the interpreter is reading from that and not from the actual file.

Change the name of your file that the python shell is reading from and try what you were doing originally:

import nltk and then nltk.download()

It’s very simple….

  1. Open pyScripter or any editor
  2. Create a python file eg: install.py
  3. write the below code in it.
import nltk
nltk.download()
  1. A pop-up window will apper and click on download .

The download window]

I had the similar issue. Probably check if you are using proxy.

If yes, set up the proxy before doing download:

nltk.set_proxy('http://proxy.example.com:3128', ('USERNAME', 'PASSWORD'))

If you are running a really old version of nltk, then there is indeed no download module available (reference)

Try this:

import nltk
print(nltk.__version__)

As per the reference, anything after 0.9.5 should be fine

you should add python to your PATH during installation of python…after installation.. open cmd prompt type command-pip install nltk
then go to IDLE and open a new file..save it as file.py..then open file.py
type the following:
import nltk

nltk.download()

Try download the zip files from http://www.nltk.org/nltk_data/ and then unzip, save in your Python folder, such as C:\ProgramData\Anaconda3\nltk_data

if you have already saved a file name nltk.py and again rename as my_nltk_script.py. check whether you have still the file nltk.py existing. If yes, then delete them and run the file my_nltk.scripts.py it should work!

just do like

import nltk
nltk.download()

then you will be show a popup asking what to download , select ‘all’. it will take some time because of its size, but eventually we will get it.

and if you are using Google Colab, you can use

nltk.download(download_dir="/content/nltkdata")

after running that you will be asked to select from a list

NLTK Downloader
----------------------------------------------------------------- 
----------
d) Download   l) List    u) Update   c) Config   h) Help   q) 
Quit
----------------------------------------------------------------- 
----------
Downloader> d

here you have to enter d as you want to download.
after that you will be asked to enter the identifier that you want to download . You can see the list of available indentifier with l command or if you want all of them just enter ‘all’ in the input box.
then you will see something like –

Downloading collection 'all'
       | 
       | Downloading package abc to /content/nltkdata...
       |   Unzipping corpora/abc.zip.
       | Downloading package alpino to /content/nltkdata...
       |   Unzipping corpora/alpino.zip.
       | Downloading package biocreative_ppi to /content/nltkdata...
       |   Unzipping corpora/biocreative_ppi.zip.
       | Downloading package brown to /content/nltkdata...
       |   Unzipping corpora/brown.zip.
       | Downloading package brown_tei to /content/nltkdata...
       |   Unzipping corpora/brown_tei.zip.
       | Downloading package cess_cat to /content/nltkdata...
       |   Unzipping corpora/cess_cat.zip.
.
.
. 
 |   Unzipping models/wmt15_eval.zip.
       | Downloading package mwa_ppdb to /content/nltkdata...
       |   Unzipping misc/mwa_ppdb.zip.
       | 
     Done downloading collection all

---------------------------------------------------------------------------
    d) Download   l) List    u) Update   c) Config   h) Help   q) Quit
---------------------------------------------------------------------------
Downloader> q
True

at last you can enter q to quit.

You may try:

>> $ import nltk
>> $ nltk.download_shell()
>> $ d
>> $ *name of the package*

happy nlp’ing.


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