Le 27/10/2011 13:03, Duncan Booth a écrit :
-- where the official documentation refers to this point ?
See http://docs.python.org/reference/datamodel.html for the docs about
__slots__
There is also the API documentation which describes at a low level how
to control whether or not instances have a dict:
http://docs.python.org/c-api/typeobj.html#tp_dictoffset
I'm not sure though where you find a higher level statement of which
builtin types have a __dict__.
OK, thanks for the information abouts the slots. Nevertheless, this
cannot answer completely my question. Some builtin types like string,
lists, integer, float, dictionaries, etc have the property that
instances of those types don't provide a __dict__ attribute. I can't
imagine the documentation lets pass silently this point.
But beside this, how to recognise classes whose object doesn't have a
__dict__ attribute ?
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