diff --git a/homework4/starting_point/.idea/workspace.xml b/homework4/starting_point/.idea/workspace.xml
index 774d64a..3c629e3 100644
--- a/homework4/starting_point/.idea/workspace.xml
+++ b/homework4/starting_point/.idea/workspace.xml
@@ -1,662 +1,658 @@
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diff --git a/homework4/starting_point/py_part.cpp b/homework4/starting_point/py_part.cpp
index 7b5fbe8..2a20794 100644
--- a/homework4/starting_point/py_part.cpp
+++ b/homework4/starting_point/py_part.cpp
@@ -1,70 +1,70 @@
 #include <functional>
 #include <iostream>
 #include <pybind11/pybind11.h>
 #include "planets_factory.hh"
 #include "ping_pong_balls_factory.hh"
 #include "material_points_factory.hh"
 #include "csv_writer.hh"
 #include "compute_temperature.hh"
 
 namespace py = pybind11;
 
 PYBIND11_MODULE(pypart, m) {
     m.doc() = "pybind particle plugin"; // optional docstring
 
     // wrap the class
     py::class_<ParticlesFactoryInterface>(m, "ParticlesFactoryInterface")
             .def("getInstance", &ParticlesFactoryInterface::getInstance,
                     py::return_value_policy::reference);
 
     py::class_<PingPongBallsFactory, ParticlesFactoryInterface>(m, "PingPongBallsFactory")
             .def("getInstance", &PingPongBallsFactory::getInstance,
                     py::return_value_policy::reference)
             .def("createSimulation", &PingPongBallsFactory::createSimulation,
                  py::return_value_policy::reference);
 
     py::class_<PlanetsFactory, ParticlesFactoryInterface>(m, "PlanetsFactory")
             .def("getInstance", &PlanetsFactory::getInstance,
                     py::return_value_policy::reference)
             .def("createSimulation", &PlanetsFactory::createSimulation,
                  py::return_value_policy::reference);
 
     py::class_<MaterialPointsFactory, ParticlesFactoryInterface>(m, "MaterialPointsFactory")
             .def("getInstance", &MaterialPointsFactory::getInstance,
                     py::return_value_policy::reference)
             .def("createSimulation",
                     (SystemEvolution & (MaterialPointsFactory::*)(const std::string &, Real))
                     &MaterialPointsFactory::createSimulation, py::return_value_policy::reference
             )
             .def("createSimulation", py::overload_cast<const std::string&, Real, py::function>
                     (&MaterialPointsFactory::createSimulation<py::function>),
                     py::return_value_policy::reference);
 
     py::class_<SystemEvolution>(m, "SystemEvolution")
             .def("setNSteps", &SystemEvolution::setNSteps)
             .def("setDumpFreq", &SystemEvolution::setDumpFreq)
             .def("evolve", &SystemEvolution::evolve)
             .def("getSystem", &SystemEvolution::getSystem,
                  py::return_value_policy::reference);
 
     py::class_<CsvWriter>(m, "CsvWriter")
             .def(py::init<const std::string&>())
             .def("write", &CsvWriter::write);
 
     py::class_<System>(m, "System");
 
     //Compute and ComputeTemperature wrappers are not implemented;
     //only name of the class ComputeTemperature for python script's header
 
 
     py::class_<Compute, std::shared_ptr<Compute>>(m, "Compute");
 
-    py::class_<ComputeTemperature, Compute>(m, "ComputeTemperature")
+    py::class_<ComputeTemperature, std::shared_ptr<Compute>, Compute>(m, "ComputeTemperature")
             .def_property("conductivity", &ComputeTemperature::getConductivity, &ComputeTemperature::setConductivity)
             .def_property("capacity", &ComputeTemperature::getCapacity, &ComputeTemperature::setCapacity)
             .def_property("desnsity", &ComputeTemperature::getDensity, &ComputeTemperature::setDensity)
             .def_property("L", &ComputeTemperature::getL, &ComputeTemperature::setL)
             .def_property("deltat", &ComputeTemperature::getDeltat, &ComputeTemperature::setDeltat);
 }