From eca47847810f75c57f09241bb92d19e1cc90fa7e Mon Sep 17 00:00:00 2001
From: Guido van Rossum <guido@python.org>
Date: Thu, 27 Apr 2000 23:44:15 +0000
Subject: 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.

---
 Python/pythonrun.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Python/pythonrun.c b/Python/pythonrun.c
index 0ae15fa..17d569d 100644
--- 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 */
-- 
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