commit a8b0707d91358d23cb9453918477d1d0b1fccd82
author Ethan Furman <ethan@stoneleaf.us> Fri Oct 18 01:22:08 2013 -0700
committer Ethan Furman <ethan@stoneleaf.us> Fri Oct 18 01:22:08 2013 -0700
tree e4484f700cfac27a07704a92b84258a46f73c21b
parent 2498d9e96834bb21b5c8bb55c81f311a2760ea7a

Issue #19030:  special-cased __dict__ as the actual dict is not returned, a proxy is.

Lib/inspect.py

diff --git a/Lib/inspect.py b/Lib/inspect.py
index 7cd7011..2e3a670 100644
--- a/Lib/inspect.py
+++ b/Lib/inspect.py
@@ -362,6 +362,8 @@
         dict_obj = sentinel
         if name not in processed:
             try:
+                if name == '__dict__':
+                    raise Exception("__dict__ is special, we don't want the proxy")
                 get_obj = getattr(cls, name)
             except Exception as exc:
                 pass