[Zope] Python: Class and method and documentation

After a lot test, I think I found something strange in Zope (Or maybe it is too late in the morning...): I built a Python class to be used in a pure Python product. I wanted to add method but add a lot of trouble. Some of them was working and some of them kept going the "Ressource not found" Message. The answer is that it seems that you MUST document your method so that it can be properly manage by Zope: For exemple the method: def test(self): return "test" does not work, but: def test(self): """This is a test method""" return "test" does seem to work. I need help. Could you confirm and explain me this _cryptic_ behaviour... -- Mickaël