Mark Hammond: For Windows debug builds, we now only offer to dump

remaining object references if the environment variable PYTHONDUMPREFS
exists.  The default behaviour caused problems for background or
otherwise invisible processes that use the debug build of Python.

diff --git a/Python/pythonrun.c b/Python/pythonrun.c
index 0ae15fafa268f706447d04b65af9c979a1680398..17d569d78f636d49df16053c67c44e1f1315db2a 100644 (file)
--- a/Python/pythonrun.c
+++ b/Python/pythonrun.c
@@ -242,7 +242,11 @@ Py_Finalize()
 #endif
 
 #ifdef Py_TRACE_REFS
-       if (_Py_AskYesNo("Print left references?")) {
+       if (
+#ifdef MS_WINDOWS /* Only ask on Windows if env var set */
+           getenv("PYTHONDUMPREFS") &&
+#endif /* MS_WINDOWS */
+           _Py_AskYesNo("Print left references?")) {
                _Py_PrintReferences(stderr);
        }
 #endif /* Py_TRACE_REFS */