The gMainDict should be borrowed, i.e. we are not calling Py_INCREF(gMainDict). Like this, we avoid unexpectedly affecting how long __main__ is kept alive. The gMainDict is only used in Exec(), ExecScript(), and Eval(), which should not be called after __main__ is garbage collected anyway.
The
gMainDictshould be borrowed, i.e. we are not calling Py_INCREF(gMainDict). Like this, we avoid unexpectedly affecting how long__main__is kept alive. ThegMainDictis only used inExec(),ExecScript(), andEval(), which should not be called after__main__is garbage collected anyway.Equivalent ROOT PR with the CI run: https://github.com/root-project/root/pull/16403