# coding=utf-8
tweet = "hello!! dude"
fixedTweet = ""
punctuationList = '''!()-[]{};:'"\,<>./?@#$%^&*_~'''
sentimentKeywords =
for char in tweet:
   if char not in punctuationList:
       fixedTweet = fixedTweet + char
tweet = fixedTweet.lower()
tweet = tweet.split(" ")
`