[C++-sig] Getting object for PyObject (reference counting)

[AFoglia at princeton.com]

Murray Cumming wrote:
> On Fri, 2009-02-27 at 07:35 -0800, Ralf W. Grosse-Kunstleve wrote:
>> The trick is to use boost::python::handle:
>>
>> http://www.boost.org/doc/libs/1_38_0/libs/python/doc/v2/handle.html
>>
>> For example:
>>
>> object python_file((handle<>(borrowed(obj_ptr))));
> 
> Thanks, but like much of the documentation, I find that page very
> unclear. Is there anything that states more obviously what should be
> done in the two cases I mentioned.

The best documentation I could find was this page on the Python wiki, 
taken from a email to this list:

http://wiki.python.org/moin/boost.python/handle

The only error is that references to "null_ok" should be "allow_null". 
At least that's the way I got it to work.

-- 
Anthony Foglia
Princeton Consultants
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