Accepts a sequence of whitespace separated words as input in Python

Write a program that accepts a sequence of whitespace separated words as input and prints the words after removing all duplicate words and sorting them alphanumerically.

Suppose the following input is supplied to the program:

hello world and practice makes perfect and hello world again

Then, the output should be:

again and hello makes perfect practice world

Hints:

In case of input data being supplied to the question, it should be assumed to be a console input.

We use to set the container to remove duplicated data automatically and then use sorted() to sort the data.

Solution:

s = raw_input()

words = [word for word in s.split(" ")]

print " ".join(sorted(list(set(words))))