working calling python

embedding.py

@@ -0,0 +1 @@
+print("hello llama.cpp")

plugin_python.cpp

@@ -0,0 +1,56 @@
+#include <boost/python.hpp>
+#include <iostream>
+#include <frameobject.h>
+#include <string>
+
+class Base {
+public:
+    Base() : mName("Base") {}
+    Base(const std::string& name) : mName(name) {}
+    virtual ~Base() {}
+    std::string name() const
+    { return mName; }
+private:
+    std::string mName;
+};
+
+
+using namespace boost::python;
+
+#if PY_MAJOR_VERSION >= 3
+#   define INIT_MODULE PyInit_mymodule
+    extern "C" PyObject* INIT_MODULE();
+#else
+#   define INIT_MODULE initmymodule
+    extern "C" void INIT_MODULE();
+#endif
+
+
+int call_python()
+{
+    try {
+        PyImport_AppendInittab((char*)"mymodule", INIT_MODULE);
+        Py_Initialize();
+        object main_module = import("__main__");
+        dict main_namespace = extract<dict>(main_module.attr("__dict__"));
+        object mymodule = import("mymodule");
+
+        main_namespace["precreated_object"] = Base("created on C++ side");
+        exec_file("embedding.py", main_namespace, main_namespace);
+    } catch (error_already_set& e) {
+        PyErr_PrintEx(0);
+        return 1;
+    }
+    return 0;
+}
+
+
+using namespace boost::python;
+
+BOOST_PYTHON_MODULE(mymodule)
+{
+    class_<Base>("Base")
+        .def("__str__", &Base::name)
+    ;
+}
+