[C++-sig] Custom smart pointer and bp::wrapper

[Roman Yakovenko]

2009/1/17 Paul Melis <pyplusplus at assumetheposition.nl>:
> But when trying to run
>
> import doh
>
> class MyCallback(doh.Callback):
>    def execute(self, t):
>        print t
>        return 1
>
> m = MyCallback()
>
> t = doh.Thing()
> t.setCallback(m)
> t.update()
>
> i'm getting
>
> Traceback (most recent call last):
>  File "no_to_python_converter.py", line 12, in <module>
>    t.update()
> TypeError: No to_python (by-value) converter found for C++ type: Thing".
>
> And I fail to see why...

Mu guess: you need to use boost::python::register_ptr_to_python< Thin >();
( http://www.boost.org/doc/libs/1_37_0/libs/python/doc/v2/register_ptr_to_python.html
)

I have more or less complete example, which exports custom pointer
class and its usage to Python:
http://www.language-binding.net/pyplusplus/troubleshooting_guide/smart_ptrs/smart_ptrs.html

HTH

-- 
Roman Yakovenko
C++ Python language binding
http://www.language-binding.net/