This page will guide you through installing Quails and its dependencies on a unix-based operating system. Quails currently only supports python 2.7.6. The next iteration will automatically install all dependencies.

These instructions have been used to install Quails on a fresh Ubuntu Server 14.04.2 LTS. If you run into any errors during the process, please send me an email at leblanc at drexel dot edu.

View the git project at

Download the project from your terminal using

git clone

See step 9 below for command to install git if necessary.

Steps to install dependencies

Perform these operations in the QUAILS_1.0 directory after cloning the repository.

One of the dependencies requires Java, so if it is not already installed on your machine, install using the following:

sudo apt-get install default-jre-<your_version>

1. Install pip

sudo apt-get install python-pip

2. Install python-dev

sudo apt-get install python-dev

3. Install Python’s ConfigParser

sudo pip install configparser

4. Install the Python Requests library

sudo pip install requests

5. Install the Flask RESTful server library

sudo pip install flask

6. Install Natural Language ToolKit

sudo pip install nltk

7. From the command line open a Python interpreter instance and enter the following lines:

import nltk'all')

Something in the nltk download script causes it to fail, so if/when it happens, just exit the interpreter. The next version will include a workaround to shield the user from this issue.

8. Install pexpect, unidecod, and jsonrpclib, all required to run the Stanford Core libraries.

sudo pip install pexpect unidecode jsonrpclib

9. Install git (if not already installed)

sudo apt-get install git

10. Install the corenlp-python library

git clone
cd corenlp-python.git
sudo python install

11. Install the Stanford Core NLP Jars (sudo apt-get install wget if not already installed)


You may need to install unzip depending on the machine you are installing on.

sudo apt-get install unzip

12. Install numpy, scipy, and sklearn

sudo apt-get install python-numpy python-scipy
sudo pip install scikit-learn

13. Install whoosh text indexer for Python

sudo pip install whoosh

14. Start the server

  1. Refer to the Asking a Question section of this documentation to continue working with quails.