Joel Gerard wrote:

>  I'm trying to extract some wrapped objects from a python script in
>  C++. I've tried running the example from the docs to see how extract
>  works, but it wont compile:
> 
>  struct X
>  {
>     X(int x) : v(x) {}
>     int value() { return v; }
>   private:
>     int v;
>  };
> 
>  foo()
>  {
>      object x_class(
>         class_<X>("X", init<int>())
>            .def("value", &X::value))
>            ;
> 
>      // Instantiate an X object through the Python interface.
>      // Its lifetime is now managed by x_obj.
>      object x_obj = x_class(3);
> 
>      // Get a reference to the C++ object out of the Python object
>      X& x = extract<X&>(x_obj);
>      assert(x.value() == 3);

Extract means smthng different, e.g. extracting a value

      int x = extract<int> (x.obj.attr("value"));

>  I'm using VC 7.

Don't! Use VC7.1

HTH,
Mike




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