installing nltk
Open Synaptic Package Manager:
search and install python-nltk

open terminal --> python --> import nltk --> nltk.download() --> d --> stopwords --> q -->exit()

open terminal --> python --> import nltk --> nltk.download() --> d --> wordnet --> q -->exit()


to use our code add the following in the start of the code

from table import *
from sets import Set

all the usable functions are commented in the lower part of table.py

refer tabletest.py for examples