# - - - - - I m p o r t s
To ease the future transition to Python 3.0, we'll use
module be placed before any other executable statement.
from __future__ import print_function
The standard Python
sys module gives
programs access to their standard I/O streams and command
We use the standard third-generation Python argument processor.
XML handling uses a standard
Python module. We'll refer to it within this
script as just “
from xml.etree import ElementTree as et