This is a sample doctest in a text file.

In this example, we'll rely on a global variable being set for us

already:

  >>> favorite_color

  'blue'

We can make this fail by disabling the blank-line feature.

  >>> if 1:

  ...    print 'a'

  ...    print

  ...    print 'b'

  a

  <BLANKLINE>

  b