boost-python

I've spent last 2 days trying to launch examples from Boost.Python with the "ImportError: DLL load failed: The specified module could not be found" error, while trying to load compiled (using bjam) pyd modules. I was using Windows 7 x64, Python 2.7 x64 with Boost 1.47. I've followed up different answers on StackOverflow and other sites incl. fresh installs (Python 32 and 64 bit, Boost precompiled), manual Boost's libraries building, DLL checks with dependency walker and so on, with no luck. I registered to share the solution, which worked here and which I hope may help someone, struggling with

I have this very simple C++ class: class Tree { public: Node *head; }; BOOST_PYTHON_MODULE(myModule) { class_<Tree>("Tree") .def_readwrite("head",&Tree::head) ; } I want to access the head variable from Python, but the message I see is: No to_python (by-value) converter found for C++ type: Node* From what I understand, this happens because Python is freaking out because it has no concept of pointers. How can I access the head variable from Python? I understand I should use encapsulation, but I'm currently stuck with needing a non-encapsulation solution. Of course, I find the answer ten minutes

I read through the following two threads on wrapping C library and C++ library , I am not sure I get it yet. The C++ library I am working with does use class and template, but not in any over-sophisticated way. What are issues or caveats of wrapping it with ctypes (besides the point that you can do so in pure python etc)? PyCXX , Cython and boost::python are three other choices people mentioned, is there any consensus which one is more suitable for C++? Thanks Oliver For C++ a library to be accessible from Python it must use C export names, which basically means that a function named foo will

The Python C API has the PyObject *PyType_Type object, which is equivalent to type in the interpreter. If I want to define a metaclass in C++, how can I set type as one of its bases in Boost.Python? Also, what other things should I take into consideration when defining a Python metaclass in C++? It'd be ideal if there was a Boost.Python solution to this. If not, a solution that uses the Python C API (or a combination of Boost and the C API) is good as well. Since my other classes are exposed with Boost, I'd rather leave SWIG as a last resort. Note: This is actually part of a bigger problem I'm

I am looking for a simple way to expose a C++ class instance to a python embedded interpreter. I have a C++ library. This library is wrapped (using swig for the moment) and I am able to use it from the python interpreter I have a C++ main program which instanciates a Foo class from my library and embeds a python interpreter I would like to expose my C++ world instance of Foo to the python world (and seen as a Foo class). Is this possible, if so, how? I think it's almost like in the first answer of : boost::python::ptr or PyInstance_New usage I guess this means I should use boost.Python to wrap

I've got a C++ class, with a member function that can take a small-to-large number of parameters. Lets name those parameters, a-f. All parameters have default values. As a part of the python project I am working on, I want to expose this class to python. Currently, the member function looks something like this: class myClass { public: // Constructors - set a-f to default values. void SetParameters(std::map<std::string, double> &); private: double a, b, c, d, e, f; } void myClass::SetParameters(std::map<std::string, double> const& params) { // Code to iterate over the map, and set any found key