[Python-Dev] innocent question ;-)

[Thomas Heller]

From: "Guido van Rossum" <guido@python.org>
> > ... about my beloved buffer object:
> > 
> > Would a patch to make the buffer object subclassable
> > be still accepted for 2.2, or does this fall under
> > the feature freeze?
> 
> NO.  Go away. :-)
Ok. ;-(
Is the list of subtypable types now complete (for 2.2),
or do you indend to do more?

> 
> I think the buffer() builtin should be deprecated, not improved.
> 
> > Another question:
> > It is my understanding that makeing an object
> > subclassable also exposes its constructor to Python.
> 
> Yes, since otherwise there would be no way to instantiate the
> subclass either.
So I understood this...
> 
> > What is the signature of this constructor? Is the
> > three argument version xxx(name, bases, dict) always used
> > to return a new type object (Don Beaudry hook), and can other
> > signatures freely be used to creates objects/instances
> > of this type/class?
> 
> I'm sorry, I don't understand the question.  This is the constructor
> signature for type object, IOW for metaclasses.  It has nothing to do
> with the constructor signature for builtin classes.
...but not this, sorry.
I've confused this:

  >>> int(10)
  10

with this:
  >>> type(int)("name", (), {})
  <class '__main__.name'>

Sorry again.

Thomas