refactor importClass and valgrind

src/PyWrap.cc

@@ -37,27 +37,25 @@ namespace pywrap {
     }
     void PyWrap::importClass(const clfId_t id, const std::string& moduleName, const std::string& className)
     {
+        std::lock_guard<std::mutex> lock(mutex);
         auto result = moduleClassMap.find(id);
         if (result != moduleClassMap.end()) {
             return;
         }
-        CPyObject module = PyImport_ImportModule(moduleName.c_str());
+        std::cout << "1a" << std::endl;
+        PyObject* module = PyImport_ImportModule(moduleName.c_str());
         if (PyErr_Occurred()) {
             errorAbort("Couldn't import module " + moduleName);
         }
-        CPyObject classObject = PyObject_GetAttrString(module, className.c_str());
+        PyObject* classObject = PyObject_GetAttrString(module, className.c_str());
         if (PyErr_Occurred()) {
             errorAbort("Couldn't find class " + className);
         }
-        CPyObject instance = PyObject_CallObject(classObject, NULL);
+        PyObject* instance = PyObject_CallObject(classObject, NULL);
         if (PyErr_Occurred()) {
             errorAbort("Couldn't create instance of class " + className);
         }
-        std::lock_guard<std::mutex> lock(mutex);
-        module.AddRef();
-        classObject.AddRef();
-        instance.AddRef();
-        moduleClassMap.insert({ id, { module.getObject(), classObject.getObject(), instance.getObject() } });
+        moduleClassMap.insert({ id, { module, classObject, instance } });
     }
     void PyWrap::clean(const clfId_t id)
     {

src/XGBoost.cc

@@ -1,5 +1,15 @@
 #include "XGBoost.h"
 
+
+
+
+See https ://stackoverflow.com/questions/36071672/using-xgboost-in-c
+
+
+
+
+
+
 namespace pywrap {
     std::string XGBoost::version()
     {