Author daniel.urban
Recipients daniel.urban, pitrou, terry.reedy, thet
Date 2010-08-12.18:52:21
SpamBayes Score 2.27251e-06
Marked as misclassified No
Message-id <1281639143.15.0.141345697454.issue5996@psf.upfronthosting.co.za>
In-reply-to
Content
I think, that the reason is that, object.__new__ checks, if the class is instantiable (object_new in Objects/typeobject.c ). dict.__new__ (and tuple.__new__, and I guess the __new__ method of other built-in types) doesn't call object.__new__, but user defined types typically either doesn't have a __new__, or call object.__new__ from it (directly or with super).
History
Date User Action Args
2010-08-12 18:52:23daniel.urbansetrecipients: + daniel.urban, terry.reedy, pitrou, thet
2010-08-12 18:52:23daniel.urbansetmessageid: <1281639143.15.0.141345697454.issue5996@psf.upfronthosting.co.za>
2010-08-12 18:52:21daniel.urbanlinkissue5996 messages
2010-08-12 18:52:21daniel.urbancreate