Issue #13593: updating the importlib utility decorators for __qualname__.

Lib/importlib/_bootstrap.py

@@ -111,7 +111,7 @@ def _write_atomic(path, data):
 
 def _wrap(new, old):
     """Simple substitute for functools.wraps."""
-    for replace in ['__module__', '__name__', '__doc__']:
+    for replace in ['__module__', '__name__', '__qualname__', '__doc__']:
         setattr(new, replace, getattr(old, replace))
     new.__dict__.update(old.__dict__)
 

Lib/importlib/test/test_util.py

@@ -59,6 +59,11 @@ def test_reload_failure(self):
             self.raise_exception(name)
             self.assertIs(module, sys.modules[name])
 
+    def test_decorator_attrs(self):
+        def fxn(self, module): pass
+        wrapped = util.module_for_loader(fxn)
+        self.assertEqual(wrapped.__name__, fxn.__name__)
+        self.assertEqual(wrapped.__qualname__, fxn.__qualname__)
 
 class SetPackageTests(unittest.TestCase):
 
@@ -108,6 +113,11 @@ def test_leaving_alone(self):
             module.__package__ = value
             self.verify(module, value)
 
+    def test_decorator_attrs(self):
+        def fxn(module): pass
+        wrapped = util.set_package(fxn)
+        self.assertEqual(wrapped.__name__, fxn.__name__)
+        self.assertEqual(wrapped.__qualname__, fxn.__qualname__)
 
 def test_main():
     from test import support