Made override_settings also work with TransactionTestCase when acting as a class decorator.

        self.disable()

    def __call__(self, test_func):

        from django.test import TestCase

        if isinstance(test_func, type) and issubclass(test_func, TestCase):

        from django.test import TransactionTestCase

        if isinstance(test_func, type) and issubclass(test_func, TransactionTestCase):

            class inner(test_func):

                def _pre_setup(innerself):

                    self.enable()

from __future__ import with_statement

import os

from django.conf import settings, global_settings

from django.test import TestCase, signals

from django.test import TransactionTestCase, TestCase, signals

from django.test.utils import override_settings

# @override_settings(TEST='override')

class FullyDecoratedTranTestCase(TransactionTestCase):

    def test_override(self):

        self.assertEqual(settings.TEST, 'override')

    @override_settings(TEST='override2')

    def test_method_override(self):

        self.assertEqual(settings.TEST, 'override2')

FullyDecoratedTranTestCase = override_settings(TEST='override')(FullyDecoratedTranTestCase)

# @override_settings(TEST='override')

class FullyDecoratedTestCase(TestCase):