diff -ur root-6.20.02.orig/bindings/pyroot/src/Cppyy.cxx root-6.20.02/bindings/pyroot/src/Cppyy.cxx

--- root-6.20.02.orig/bindings/pyroot/src/Cppyy.cxx	2020-03-15 16:21:25.000000000 +0100

+++ root-6.20.02/bindings/pyroot/src/Cppyy.cxx	2020-03-21 14:10:09.322489811 +0100

@@ -74,10 +74,6 @@

 class ApplicationStarter {

 public:

    ApplicationStarter() {

-      // Insure ROOT's atexit is executed *after* the atexit that calls

-      // ApplicationStarter's destructor, by forcing the ROOT's atexit

-      // registration now.

-      TROOT::Initialize();

       // setup dummy holders for global and std namespaces

       assert( g_classrefs.size() == GLOBAL_HANDLE );

       g_name2classrefidx[ "" ]      = GLOBAL_HANDLE;

@@ -90,8 +86,6 @@

    }

    ~ApplicationStarter() {

-      for ( auto ifunc : g_method2callfunc )

-         gInterpreter->CallFunc_Delete( ifunc.second );

    }

 } _applicationStarter;