Python doctest

• format:

  """
  Any notes about function here...
  ...then doctest/s:
  >>> function_name(argument)
  what the expected result is
  """

• python3 -m doctest file_name.py -v - runs the doctests for file_name.py from command line
  • -m doctest calls the doctest module
  • -v makes it verbose mode
  • see links under 'Testing Info/Resources' for other ways to run the doctests