Return None to signal that the module the object was defined in was not found...

Return None to signal that the module the object was defined in was not found when object has no __name__ attr but is needed to figure out location of object.

Lib/inspect.py

@@ -383,6 +383,8 @@ def getmodule(object):
     if file in modulesbyfile:
         return sys.modules.get(modulesbyfile[file])
     main = sys.modules['__main__']
+    if not hasattr(object, '__name__'):
+        return None
     if hasattr(main, object.__name__):
         mainobject = getattr(main, object.__name__)
         if mainobject is object: