def test_loadPackagesAndModules(self):
        """
        Verify that we can locate and load packages, modules, submodules, and
        subpackages.
        """
        for n in ['os',
                  'twisted',
                  'twisted.python',
                  'twisted.python.reflect']:
            m = namedAny(n)
            self.failUnlessIdentical(
                modules.getModule(n).load(),
                m)
            self.failUnlessIdentical(
                self.findByIteration(n).load(),
                m)

        Verify that we can locate and load packages, modules, submodules, and
        subpackages.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/test/test_modules.py