App/main: finalize Python interpreter

App/CMakeLists.txt

@@ -51,6 +51,10 @@ target_include_directories(${executable_name} PRIVATE ${CMAKE_SOURCE_DIR})
 # -----------------------------------------------------------------------------
 # extra target properties
 # -----------------------------------------------------------------------------
+if(BORNAGAIN_PYTHON)
+    target_compile_definitions(${executable_name} PRIVATE -DBORNAGAIN_PYTHON)
+endif()
+
 if(WIN32)
     set_target_properties(${executable_name} PROPERTIES LINK_OPTIONS /ENTRY:mainCRTStartup)
     if(win32_console)

App/main.cpp

@@ -19,6 +19,7 @@
 #include "GUI/View/Base/Stylesheet.h"
 #include "GUI/View/Main/MainWindow.h"
 #include "GUI/View/Widget/AppConfig.h"
+#include "PyCore/Embed/PyInterpreter.h" // PyInterpreter::finalize
 #include "config_build.h"
 #include <QApplication>
 #include <QDir>
@@ -82,5 +83,11 @@ int main(int argc, char* argv[])
     win.show();
 
     ret = app.exec();
+
+#ifdef BORNAGAIN_PYTHON
+    std::cout << "BornAgain: finalize Python interpreter..." << std::endl;
+    PyInterpreter::finalize();
+#endif // BORNAGAIN_PYTHON
+
     return ret;
 }