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Showing content from https://mail.python.org/pipermail/python-dev/2003-August/037538.html below:

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

[Python-Dev] Make it an error to use __slots__ with classic classes [Python-Dev] Make it an error to use __slots__ with classic classesFred L. Drake, Jr. fdrake at acm.org
Sat Aug 9 03:04:00 EDT 2003 
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
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