Fix use of deprecated assert_ method.
diff --git a/Lib/test/test_descr.py b/Lib/test/test_descr.py
index 77cadc0..92304b4 100644
--- a/Lib/test/test_descr.py
+++ b/Lib/test/test_descr.py
@@ -4482,8 +4482,8 @@
return '{' + ', '.join(sorted(kvs)) + '}'
dict_ = {k: v for k, v in self.C.__dict__.items()}
repr_ = repr(self.C.__dict__)
- self.assert_(repr_.startswith('dict_proxy('))
- self.assert_(repr_.endswith(')'))
+ self.assertTrue(repr_.startswith('dict_proxy('))
+ self.assertTrue(repr_.endswith(')'))
self.assertEqual(sorted_dict_repr(repr_[len('dict_proxy('):-len(')')]),
sorted_dict_repr('{!r}'.format(dict_)))