Thomas Daniel wrote:
>  
>  BOOST_PYTHON_MODULE(vegetables)
>  {
>     class_<Garden>("Garden")
>         .def("get_potatoes", &Garden::get_potatoes)
>         .def("get_tomatoes", &Garden::get_tomatoes)
>     ;
>     class_<TomatoIter>("TomatoIter")
>         .def("__iter__", &TomatoIter::get_next)
>     ;
>  }
>  
>  That at least compiles - unlike all my previous attempts that generate 
>  three pages of template errors - but python complain:
>  
>  TypeError: iter() returned non-iterator of type 'Tomato'
>  
>  so now I am trying to figure out how to tell boost that get_tomatoes 
>  returns an iterator ...
>  

Please don't top-post, guys

As you know, python iterators have a function next() that returns the 
next object in the iteree, or throw StopIteration when they're at the 
end.  As you also know, python expects member functions __iter__() to 
return an iterator.  Is the thing returned by TomatoIter::get_next an 
iterator, ie does it implement the iterator interface?

-t

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