"Scott A. Smith" <ssmith@[...].edu>  writes:

>  I also have looked over the mailing list archives and 
>  still don't see how things work. The example given was
> 
> > #include <boost/python/module.hpp>
> > #include <boost/python/class.hpp>
> >
> > struct Num {
> >    Num() {}
> >    ~Num() {}
> >    static int getDims() {return 3;}
> >    int dims() {return 5;}
> > };
> >
> > BOOST_PYTHON_MODULE_INIT(numTest)
> > {
> >    using namespace boost::python;
> >    module numTestMod("numTest");
> >    numTestMod
> >       .add
> >       ( class_<Num>("Num")
> >         .def_init()
> >         .def("getDims",&Num::getDims)
> >         .def("dims", &Num::dims)
> >         )
> >       ;
> > }
> 
>  Was the conclusion in this discussion that one cannot
>  use getDims with an instance of the class NOR with the
>  class itself? That is neither
> 
>  X = Num()
>  X.getDims()
> 
>  nor
> 
>  Num.getDims()
> 
>  will work? 

I don't know if we concluded that, but it's correct.

>  Neither works for me. David wrote that
> 
> > We don't have a way to make true static methods yet.
> 
>  So, what ways are there for using the static method? 

A static member function is just a regular function; you can add it at
module scope:

BOOST_PYTHON_MODULE_INIT(numTest)
{
   def("getDims", &Num::getDims);
   ...
}

>  As I recall, using the static method in Python via the class name
>  worked OK in BPV1. 

I think that's correct.

>  I cannot get function getDims() working in V2 with anything I've
>  tried. Can someone spell it out for me?

See above.

>  Thanks, (and thanks to Dave twice over in a single day)

If it's any consolation, I now know exactly what needs to be done to
support static methods. It's just a matter of finding time and/or
funding to do the work...

-- 
                       David Abrahams
   dave@[...].com * http://www.boost-consulting.com
Boost support, enhancements, training, and commercial distribution


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