[C++-sig] Re: instantiating python objects within C++

[Stefan Seefeld]

Hi David,

David Abrahams wrote:

>     object FooClass
>         = class_<Foo>("Foo", init<int, char const*>())
>                .def( ... )
>                ...
>                ;
> 
>     object foo = FooClass(3, "hello");
> 
> Joel, we might want to do that example in two steps as shown above
> just to make it crystal clear what's happening.

yes, the 'missing link' was that I didn't understand what the above
really meant for the python interpreter. For example right now I'm
not even instantiating that class explicitely, I use a callable's
'()' operator. The python interpreter then figures out that it should
create the so defined wrapper object and wrap it around my existing
foo instance.
That is something I didn't understand (and still don't in detail).
Explaining that in greater detail would surely help, not only to
use boost.python, but also to understand how all the magic works.

Thanks,
		Stefan