[Python-Dev] Make it an error to use __slots__ with classic classes

[Fred L. Drake, Jr.]

Raymond Hettinger writes:
 > Using __slots__ with a classic class is an error that does
 > not readily reveal itself.  For Py2.3.1, I would like to 
 > issue a warning, and for Py2.4, I would like to
 > raise an exception upon class creation:

You'll need to explain your motivation a bit more.  Why is it an error
to define __slots__ on an old-style class?  (Useless perhaps, but why
an error?)


  -Fred

-- 
Fred L. Drake, Jr.  <fdrake at acm.org>
PythonLabs at Zope Corporation