piping string input into python

Question

I want to make a simple application hello.py in python that prints the piped string, so that when I call

echo "Hello StackOverflow" | python3 hello.py

The python app prints

Hello StackOverflow

What do I write in my hello.py file?

Answer 1

import sys

for line in sys.stdin:
    sys.stdout.write(line)

Input:

echo "Hello StackOverflow" | python3 hello.py

Output:

Hello StackOverflow