Re: Recursion error in metaclass

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From	Daniel Urban <urban.dani@gmail.com>
Date	Sat, 11 Jun 2011 22:51:01 +0200
Subject	Re: Recursion error in metaclass
To	Terry Reedy <tjreedy@udel.edu>
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On Sat, Jun 11, 2011 at 21:39, Terry Reedy <tjreedy@udel.edu> wrote:
> What may not be obvious from the docs is that the metaclass calculation
> described in the doc section on class statements is carried out within
> type.__new__ (or after a possible patch, called from within that), so that
> type calls are really "a dynamic form of the class statement" even when
> another another metaclass is specified or implied. "Return a new type
> object." includes instances of type subclasses. I am not sure what happens
> with metaclasses that are not type subclasses. There is at least one bug
> report about the metaclass calculation, which is why I happen to have read
> the typeobject.__new__ code. But I have not read the build-class code and
> all the details of class creation. So I may have some of the details above
> wrong.

Just for the record, I think this is the mentioned bug:
http://bugs.python.org/issue1294232


Daniel

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Recursion error in metaclass Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-06-11 03:34 +0000
  Re: Recursion error in metaclass Terry Reedy <tjreedy@udel.edu> - 2011-06-11 01:33 -0400
    Re: Recursion error in metaclass Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-06-11 11:38 +0000
      Re: Recursion error in metaclass Terry Reedy <tjreedy@udel.edu> - 2011-06-11 15:39 -0400
      Re: Recursion error in metaclass Daniel Urban <urban.dani@gmail.com> - 2011-06-11 22:51 +0200

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