add testcase for #9334

test/input/func_noerror_class_attributes.py

@@ -0,0 +1,17 @@
+"""Test that valide class attribut doesn't trigger errors"""
+__revision__ = 'sponge bob'
+
+class Clazz(object):
+    "dummy class"
+
+    def __init__(self):
+        self.topic = 5
+        self._data = 45
+
+    def change_type(self, new_class):
+        """Change type"""
+        self.__class__ = new_class
+
+    def do_nothing(self):
+        "I do nothing useful"
+        return self.topic + 56