Generic constructors and duplication of internal Python logic

[John J. Lee]

michele.simionato at poste.it (Michele Simionato) writes:

> jjl at pobox.com (John J. Lee) wrote in message news:<87ekqq41ya.fsf at pobox.com>...
> > I have to check things like:
> > 
> >  -are there too many positional arguments?
> >  -any unexpected keyword arguments?
> >  -multiple keyword arguments?
> >  -any duplication between positional and keyword arguments?
> > 
> > etc.
> > 
> > Surely there's some easy way of making use of Python's internal logic
> > here?  For some reason, I can't see how.  Can anybody see a way?
> > 
> > 
> > John
> 
> Have you thought of performing the checks in the __call__ method
> of a custom metaclass?

No.  How would that help?


John