retain-transient-locals-in-class

Author: Darshan808

IPython/core/guarded_eval.py

@@ -684,7 +684,7 @@ def dummy_function(*args, **kwargs):
         return None
     if isinstance(node, ast.ClassDef):
         # TODO support class decorators?
-        class_locals = {}
+        class_locals = context.transient_locals.copy()
         class_context = context.replace(transient_locals=class_locals)
         for child_node in node.body:
             eval_node(child_node, class_context)

tests/test_completer.py

@@ -2141,6 +2141,19 @@ def _(expected):
             ),
             "append",
         ],
+        [
+            "\n".join(
+                [
+                    "l = []",
+                    "class NotYetDefined:",
+                    "    def my_method(self):",
+                    "        return l",
+                    "my_instance = NotYetDefined()",
+                    "my_instance.my_method().",
+                ]
+            ),
+            "append",
+        ],
     ],
 )
 def test_undefined_variables(use_jedi, evaluation, code, insert_text):