I am working on program which takes user input and replaces the words in a list with 'x'. eg is the word is sucks and user input is "this word is sucks". the output should be "this word is xxxxx.

this is what i have so far. how can i access the elements in the list and match with the user input?

def main():message = []words = ['drat','crap','sucks']counter = 0userInput = str(input("Enter The Sentense: "))truncatedInput = userInput[:140]sentence =  truncatedInput.split()for i in range(len(sentence)):

def main():final_message = []words = ['drat','crap','sucks']counter = 0userInput = input("Enter The Sentense: ")  # use raw_input if you're using python2.XtruncatedInput = userInput[:140]sentence =  truncatedInput.split()for word in sentence:if word in words:word = 'x' * len(word)final_message.append(word)print ' '.join(final_message)