8:42:20 $ echo %@python[print('Hello, World!')]
8:42:43 $ which python
python is an external : C:\Python34\python.exe
8:44:12 $ head C:\Python34\README.txt
This is Python version 3.4.3
Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011,
2012, 2013, 2014, 2015 Python Software Foundation. All rights reserved.
Python 3.x is a new version of the language, which is incompatible with the 2.x
line of releases. The language is mostly the same, but many details, especially
how built-in objects like dictionaries and strings work, have changed
considerably, and a lot of deprecated features have finally been removed.