Lib/test/test_asyncio/echo2.py - external/github.com/python/cpython - Git at Google

 import os

 if __name__ == '__main__':
     buf = os.read(0, 1024)
     os.write(1, b'OUT:'+buf)
     os.write(2, b'ERR:'+buf)
	import os

	if __name__ == '__main__':
	buf = os.read(0, 1024)
	os.write(1, b'OUT:'+buf)
	os.write(2, b'ERR:'+buf)