Re: [boost] C++ Functions not being called from Python....

From: David Abrahams (abrahams_at_[hidden])
Date: 2001-03-28 15:04:31

----- Original Message -----
From: "Karl Bellve" <Karl.Bellve_at_[hidden]>
To: <boost_at_[hidden]>
Sent: Wednesday, March 28, 2001 1:31 PM
Subject: [boost] C++ Functions not being called from Python....

>
> From the partial code below, my module is loaded by Python (statically
> linked in my app, as well as BPL). But, it fails when it tries to find
> the function "GetT" using the call PyDict_GetItemString.

That's because GetT is not an attribute of the module imagemangager, but of
the class imagemanager.CImageManager.

Try func = Py_GetAttrString(PyDict_GetItemString(mdict,"CImageManager"),
"GetT")

of course, I don't think that's what you want in this case. you'll need an
object to call the function through. Why bother with the class? Just make
sure CImageManager::GetT is a static member or a free function, and "def" it
directly on the module_builder.

> It also doesn't
> redirect STDIO or STDERR when I put that in a simple
> PyRun_SimpleString(). It is a little harder to check things inside
> Python because I am not making a DLL, so I can't really load the module
> into a python shell and see the STDIO/STDERR, unless I redirect it back
> to my Application.
>
> Everything compiles fine. Program runs fine but isn't able to call GetT,
> stdout and stderr....

You seem to have lots of problems with your approach, but the first one is
the same mistake that you made above: you're trying to access stdout and
stderr through the imagemanager module whereas they're really defined to the
extension class imagemanager.CImageManager

HTH,
Dave