bpo-43901: Lazy-create an empty annotations dict in all unannotated user classes and modules (#25623)
Change class and module objects to lazy-create empty annotations dicts on demand. The annotations dicts are stored in the object's `__dict__` for backwards compatibility.
diff --git a/Lib/test/ann_module4.py b/Lib/test/ann_module4.py
new file mode 100644
index 0000000..13e9aee
--- /dev/null
+++ b/Lib/test/ann_module4.py
@@ -0,0 +1,5 @@
+# This ann_module isn't for test_typing,
+# it's for test_module
+
+a:int=3
+b:str=4