minmal doctest example

doc.py

import doctest
import work

suite = DocTestSuite(work)

# What goes here?

output of run.py

$ python run.py 

----------------------------------------------------------------------
Ran 0 tests in 0.000s

OK

run.py

import unittest
import sys

# this is the code in someone else's package -- I can't change this.
suite = unittest.TestSuite()
module = __import__('work', None, None, [""])
suite.addTest(unittest.defaultTestLoader.loadTestsFromModule(module))

runner = unittest.TextTestRunner()
result = runner.run(suite)

sys.exit(not result.wasSuccessful())

work.py

def f():
    """
    >>> print 'foo'
    bar
    """