Accepts the sequence of lines as input and prints the lines in Python

Write a program that accepts the sequence of lines as input and prints the lines after making all characters in the sentence capitalized.

Suppose the following input is supplied to the program:

Hello world

Practice makes perfect

Then, the output should be:

HELLO WORLD

PRACTICE MAKES PERFECT

Hints:

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

Solution:

lines = []

while True:

    s = raw_input()

    if s:

        lines.append(s.upper())

    else:

        break;

for sentence in lines:

    print sentence