problem in the book

[WANG Wei]

Hello everyone,

I follow the command,
sent = nltk.corpus.treebank.tagged_sents()[22]
>>> print nltk.ne_chunk(sent, binary=True) [1]

but there is a error

Traceback (most recent call last):
File "<stdin>", line 1, in ?
TypeError: ne_chunk() got an unexpected keyword argument 'binary'

CHeers,

--
Wei WANG
wei....@ensta.fr
ENSTA, ParisTech

[anand j]

Hi wei,
         which version are you using?? what was your import??
I am using 0.9.8(if my memory is right.how do i check the version installed on my comp?)
 and for me the print nltk.ne_chunk throws the object ne_chunk not found error.......

==============================================
Anand J
Center for Behaviour and Cognitive Sciences
University of Allahabad
Allahabad-211002
http://cbcs.ac.in
==============================================
The man who is really serious,
with the urge to find out what truth is,
has no style at all. He lives only in what is.
                 ~Bruce Lee

[WANG Wei]

Hi Anand,

I am using the same version, 0.9.8
import nltk
and then from nltk.book import *

Perhaps you didn't do the second import.

Cheers,

Wei

2009/4/8 anand j <anand....@gmail.com>:

[anand j]

i hadn't done it true.......but this time did that too..
It might turn to be a different python version.........
I am using version 2.5.2..
attaching the screenshot..

==============================================
Anand J
Center for Behaviour and Cognitive Sciences
University of Allahabad
Allahabad-211002
http://cbcs.ac.in
==============================================
The man who is really serious,
with the urge to find out what truth is,
has no style at all. He lives only in what is.
                 ~Bruce Lee

[Andrew Lee]

On Apr 8, 12:48 pm, anand j <anand.ibm...@gmail.com> wrote:
..

> > Hi Anand,
>
> > I am using the same version, 0.9.8
> > import nltk
> > and then from nltk.book import *
>
> > Perhaps you didn't do the second import.
>

don't use "binary"

from chunk/__init__.py:

line 171: def ne_chunk(tagged_tokens):

It does not take a named argument in 0.9.9b1, nor in 0.9.8

Also -- please use nltk-users for questions.

Cheers,

Andrew

[WANG Wei]

Hi Andrew,

Sorry for the disturb to dev list again.

There is always a problem when I was trying to do this:

>>> sent = nltk.corpus.treebank.tagged_sents()[22]
>>> print nltk.ne_chunk(sent)

Traceback (most recent call last):
File "<stdin>", line 1, in ?

File "/usr/lib/python2.4/site-packages/nltk/chunk/__init__.py", line
177, in ne_chunk
return tagger.tag(tokens)
AttributeError: 'NEChunkParser' object has no attribute 'tag'

Cheers,

Wei

2009/4/9 Andrew Lee <fiacre....@gmail.com>:

[Andrew Lee]

On Apr 9, 3:02 am, WANG Wei <wangwei...@gmail.com> wrote:
> Hi Andrew,
>
> Sorry for the disturb to dev list again.
>
> There is always a problem when I was trying to do this:
>
> >>> sent = nltk.corpus.treebank.tagged_sents()[22]
> >>> print nltk.ne_chunk(sent)
>
> Traceback (most recent call last):
>   File "<stdin>", line 1, in ?
>   File "/usr/lib/python2.4/site-packages/nltk/chunk/__init__.py", line
> 177, in ne_chunk
>     return tagger.tag(tokens)
> AttributeError: 'NEChunkParser' object has no attribute 'tag'
>

It works for me with python 2.6.1 and nltk 0.9.9b1

Try it with the latest release of nltk. It seems like the book and
code are little out of synch, but that example works for me.

-- Andrew

[Steven Bird]

2009/4/10 Andrew Lee <fiacre....@gmail.com>:

> It works for me with python 2.6.1 and nltk 0.9.9b1
>
> Try it with the latest release of nltk.  It seems like the book and
> code are little out of synch, but that example works for me.

Yes, they're slightly out of sync, sorry. I hoped to have 0.9.9 final
released before traveling to New Guinea for a field trip. It won't
happen until I get back at the end of the month, unless Edward has
time.

If anyone can hang out on nltk-users and answer questions there, it
would be much appreciated.

Thanks,
-Steven

[Petro Verkhogliad]

Actually, I was wondering..

_NE_CHUNKER = 'chunkers/maxent_ne_chunker/english_ace.pickle'

How was this file generated? Is there a way to update the file with
the available NLTK code?

Petro

[Andrew Lee]

On Apr 11, 3:01 am, Petro Verkhogliad <vpe...@gmail.com> wrote:
> Actually, I was wondering..
>
>  _NE_CHUNKER = 'chunkers/maxent_ne_chunker/english_ace.pickle'
>
> How was this file generated? Is there a way to update the file with
> the available NLTK code?
>
> Petro
>

I believe the data was from one of the sets here:

http://projects.ldc.upenn.edu/ace/data/

If you look at ne_chunker.py ??? (it was pasted as a example in the
users group) you can see that an sgml file is parsed -- several of the
ACE structured data files are used for training named entity
extractors.

english_ace.pickle is a trained entity extractor class that has been
pickled. The data isn't free, unfortunately.

:-(

-- Andrew

[Petro Verkhogliad]

Hi,

I did take a look at the nltk/chunk/named_entity.py. That is what gave
rise to the question. I thought I might have been missing the data.
But since, as you pointed out, the data is not free, everything makes
sense.

Thanks,
Petro

[Joel Nothman]

It may be worth having a machine somewhere with all the scripts and data
required to reproduce pickles so that we don't run into these versioning
problems...

- Joel



On Sun, 12 Apr 2009 07:22:22 +1000, Petro Verkhogliad <vpe...@gmail.com>
wrote: