[Python-ideas] Assignment decorators (Re: The Descriptor Protocol...)

[Matthew Woodcraft]

On 2011-03-09 01:34, Terry Reedy wrote:
> All are syntactic sugar for
> 
> name = makeob('name', *arg, **kwds)
> 
> For classes and modules there are visibly such alternatives:
> 
> cls = type('cls',bases, classdict)
> mod = __import__('mod', ...)
> 
> There is also a function in inspect that makes functions.
> 
> So your point is correct:
> 
> name = makeob('name', ...) # becomes
> 
> keywd name ....
> 
> but we do not really want a new keyword for every new type of object
> with a definition name. Can we do with just one?

Thinking along those lines suggests

def(CharField) foo(size=10, nullable=False)

as sugar for

foo = CharField(size=10, nullable=False, __name__='foo')


This seems quite a good parallel to class definitions, though less close
to function definitions and import statements.

-M-