1This is a sample doctest in a text file. 2 3In this example, we'll rely on a global variable being set for us 4already: 5 6 >>> favorite_color 7 'blue' 8 9We can make this fail by disabling the blank-line feature. 10 11 >>> if 1: 12 ... print 'a' 13 ... print 14 ... print 'b' 15 a 16 <BLANKLINE> 17 b 18