python 3.5 - cannot use pycorenlp for python3.5 through terminal

Question

My default python is 2.7, but have to do this project in python3.5

I installed pycorenlp through this command line: pip3 install pycorenlp.

And it is showing I have already installed it:

Requirement already satisfied (use --upgrade to upgrade): pycorenlp in /Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages Requirement already satisfied (use --upgrade to upgrade): requests in /Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages (from pycorenlp)

However, when I type python3.5 through terminal to enter into python environment, then type from pycorenlp import StanfordCoreNLP, it is showing error:

ImportError: No module named pycorenlp

I have also tried the solutions here but for python3.5, such as using sudo, chmod, none of them worked.

Do you know how to solve this problem? I have to run the code through the terminal, and have to use pycorenlp

Answer 1

You could try using the Stanford CoreNLP server if you want to access Stanford CoreNLP in Python. Download available here: http://stanfordnlp.github.io/CoreNLP/download.html

1. Start the Java server. I'll provide the command here, but you could just as easily add a line of Python code that calls this command with subprocess and starts the server and gets back the process id.

   cd /path/to/stanford-corenlp-full-2016-10-31 ; java -Xmx4g -cp "*" edu.stanford.nlp.pipeline.StanfordCoreNLPServer -port 9000 -timeout 15000 -annotators tokenize,ssplit,pos,lemma,ner,parse,mention,coref
   

Here is some info on the Java server: http://stanfordnlp.github.io/CoreNLP/corenlp-server.html

Note that is just an example command and you can provide any list of annotators you want.

Now the Java server will be running and you can issue calls to it while your Python program runs. Here is a basic example using the requests library.

2. Make a basic call to the Stanford CoreNLP server:

   import requests
   
   url = 'http://localhost:9000/?'
   request_params = {'outputFormat': 'json'}
   text = "This is a test sentence."
   r = requests.post(url,data=text,params=request_params)
   print r.json()
   

You will get return JSON with the annotations.

3. Shut down the server.

There is also a Python wrapper we use internally for accessing the server available in stanza I think the wrapper could work with Python 3, but I am not positive. If you have issues the Python code I provided should work fine with Python 3.

Here is the GitHub for stanza: https://github.com/stanfordnlp/stanza