Metaclasses with metaclasses with a __dict__ descriptor can no longer trigger code execution with inspect.getattr_static.
Closes issue 11829.
diff --git a/Lib/inspect.py b/Lib/inspect.py
index ffbe66f..2031755 100644
--- a/Lib/inspect.py
+++ b/Lib/inspect.py
@@ -1161,10 +1161,11 @@
if obj is klass:
# for types we check the metaclass too
for entry in _static_getmro(type(klass)):
- try:
- return entry.__dict__[attr]
- except KeyError:
- pass
+ if _shadowed_dict(type(entry)) is _sentinel:
+ try:
+ return entry.__dict__[attr]
+ except KeyError:
+ pass
if default is not _sentinel:
return default
raise AttributeError(attr)