[Python-Dev] Not backporting PEP 3115 (metaclass __prepare__)

Jack Diederich jackdied at jackdied.com
Wed Mar 19 06:14:33 CET 2008


We can't backport the __prepare__ syntax without requiring metaclass
definition on the 'class' line. Because the __metaclass__ definition
can be at the end of the class in 2.6 we can't find it until after we
execute the class and that is too late to use a custom dictionary.
I wish I had thought of that yesterday,
-Jack


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