This is the third time I check in this change :-(

Don't use assignments into inst.__dict__ to restore instance
variables; use setattr() instead.

diff --git a/Lib/pickle.py b/Lib/pickle.py
index a481fc7fce9262bb1ccd911db0dd3c11ff90940a..682440d3aeed7b87d5f4e0e34b3aeabc5522cdfa 100644 (file)
--- a/Lib/pickle.py
+++ b/Lib/pickle.py
@@ -522,9 +522,8 @@ class Unpickler:
                try:
                        setstate = inst.__setstate__
                except AttributeError:
-                       instdict = inst.__dict__
                        for key in value.keys():
-                               instdict[key] = value[key]
+                               setattr(inst, key, value[key])
                else:
                        setstate(value)
        dispatch[BUILD] = load_build