'All modules listed in L{notPortedModules} exist on Py2.'

def test_exist(self):

    root = os.path.dirname(os.path.dirname(twisted.__file__))
    for module in notPortedModules:
        segments = module.split('.')
        segments[(-1)] += '.py'
        path = os.path.join(root, *segments)
        alternateSegments = (module.split('.') + ['__init__.py'])
        packagePath = os.path.join(root, *alternateSegments)
        self.assertTrue((os.path.exists(path) or os.path.exists(packagePath)), 'Module    {0}    does    not    exist'.format(module))
