config.py 文件源码

def test_prefix_package_paths_with_limited_loader(self):
        here = os.path.abspath(os.path.dirname(__file__))
        expected_prefix = os.path.join(here, 'test_apps')
        real_prefix, sys.prefix = sys.prefix, expected_prefix
        site_packages = os.path.join(expected_prefix, 'lib', 'python2.5', 'site-packages')
        sys.path.append(site_packages)
        with patch_pkgutil_get_loader():
            try:
                import site_package
                self.assert_equal(site_package.app.instance_path,
                                  os.path.join(expected_prefix, 'var',
                                               'site_package-instance'))
            finally:
                sys.prefix = real_prefix
                sys.path.remove(site_packages)
                if 'site_package' in sys.modules:
                    del sys.modules['site_package']