AssertionError occurrences in tests (Python 3.13, Debian sid)

[NGC2023]

Hi,
AssertionError occurred in tests during the build process in Debian sid. https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1088761

>       self.assertEqual(dir(self.container),
                         ['__contains__', '__delitem__', '__dict__', '__dir__', '__doc__', '__getattr__', '__getitem__',
                          '__getstate__', '__init__', '__iter__', '__len__', '__module__', '__setitem__',
                          '__setstate__', '__weakref__', '_check_for_name_attribute', '_reindex', 'append', 'blub',
                          'clear', 'extend', 'fromkeys', 'get', 'has_key', 'items', 'iteritems', 'iterkeys',
                          'itervalues', 'keys', 'update_key', 'values'])
E       AssertionError: Lists differ: ['__c[59 chars], '__firstlineno__', '__getattr__', '__getitem[323 chars]ues'] != ['__c[59 chars], '__getattr__', '__getitem__', '__getstate__'[279 chars]ues']

Following patch should fix the issue,

--- a/src/optlang/tests/test_container.py
+++ b/src/optlang/tests/test_container.py
@@ -47,12 +47,17 @@ class ContainerTestCase(unittest.TestCas
         var = Variable('blub')
         self.container.append(var)
         print(dir(self.container))
-        self.assertEqual(dir(self.container),
-                         ['__contains__', '__delitem__', '__dict__', '__dir__', '__doc__', '__getattr__', '__getitem__',
-                          '__getstate__', '__init__', '__iter__', '__len__', '__module__', '__setitem__',
-                          '__setstate__', '__weakref__', '_check_for_name_attribute', '_reindex', 'append', 'blub',
-                          'clear', 'extend', 'fromkeys', 'get', 'has_key', 'items', 'iteritems', 'iterkeys',
-                          'itervalues', 'keys', 'update_key', 'values'])
+        expected_attributes = {
+            '__contains__', '__delitem__', '__dict__', '__dir__', '__doc__',
+            '__getattr__', '__getitem__', '__getstate__', '__init__', '__iter__',
+            '__len__', '__module__', '__setitem__', '__setstate__', '__weakref__',
+            '_check_for_name_attribute', '_reindex', 'append', 'blub', 'clear',
+            'extend', 'fromkeys', 'get', 'has_key', 'items', 'iteritems',
+            'iterkeys', 'itervalues', 'keys', 'update_key', 'values'
+        }
+        actual_attributes = set(dir(self.container))
+        self.assertTrue(expected_attributes.issubset(actual_attributes),
+                    msg=f"Missing attributes: {expected_attributes - actual_attributes}")
 
     def test_del_by_index(self):
         variables_iterable = [Variable("v" + str(i), lb=10, ub=100) for i in range(1000)]

[Midnighter]

Thank you for the suggestion @NGC2023. I believe, this will be addressed by #276 already.