Made the autoreloader survive all exceptions.

        global _exception

        try:

            fn(*args, **kwargs)

        except (ImportError, IndentationError, NameError, SyntaxError,

                TypeError, AttributeError):

        except Exception:

            _exception = sys.exc_info()

            et, ev, tb = _exception

            with self.assertRaises(SyntaxError):

                autoreload.check_errors(import_module)('test_syntax_error')

        self.assertFileFoundOnlyNew(filename)

    def test_check_errors_catches_all_exceptions(self):

        """

        Since Python may raise arbitrary exceptions when importing code,

        check_errors() must catch Exception, not just some subclasses.

        """

        dirname = tempfile.mkdtemp()

        filename = os.path.join(dirname, 'test_exception.py')

        self.addCleanup(shutil.rmtree, dirname)

        with open(filename, 'w') as f:

            f.write("raise Exception")

        with extend_sys_path(dirname):

            with self.assertRaises(Exception):

                autoreload.check_errors(import_module)('test_exception')

        self.assertFileFound(filename)