itermro: Forgot to yield value

celery/tests/backends/test_base.py

@@ -11,8 +11,7 @@ from celery import current_app
 from celery.result import AsyncResult, GroupResult
 from celery.utils import serialization
 from celery.utils.serialization import subclass_exception
-from celery.utils.serialization import \
-    find_nearest_pickleable_exception as fnpe
+from celery.utils.serialization import find_pickleable_exception as fnpe
 from celery.utils.serialization import UnpickleableExceptionWrapper
 from celery.utils.serialization import get_pickleable_exception as gpe
 

celery/utils/serialization.py

@@ -94,7 +94,7 @@ def itermro(cls, stop):
             # only BaseException and object, from here on down,
             # we don't care about these.
             return
-        yield
+        yield supercls
 
 
 def create_exception_cls(name, module, parent=None):
@@ -171,7 +171,7 @@ def get_pickleable_exception(exc):
         pass
     else:
         return exc
-    nearest = find_nearest_pickleable_exception(exc)
+    nearest = find_pickleable_exception(exc)
     if nearest:
         return nearest
     return UnpickleableExceptionWrapper.from_exception(exc)