From 26c03bd7d5892e6bd7304231c8f10955a73c854d Mon Sep 17 00:00:00 2001
From: Victor Stinner <victor.stinner@gmail.com>
Date: Mon, 19 Sep 2016 11:55:44 +0200
Subject: [PATCH] Fix memory leak in path_converter()

Issue #28200: Replace PyUnicode_AsWideCharString() with
PyUnicode_AsUnicodeAndSize().
---
 Misc/NEWS             | 3 +++
 Modules/posixmodule.c | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/Misc/NEWS b/Misc/NEWS
index e26a5c05ab..0a021ea155 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -29,6 +29,9 @@ Core and Builtins
 Library
 -------
 
+- Issue #28200: Fix memory leak on Windows in the os module (fix
+  path_converter() function).
+
 - Issue #25400: RobotFileParser now correctly returns default values for
   crawl_delay and request_rate.  Initial patch by Peter Wirtz.
 
diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index ba54249684..470ee92fa1 100644
--- a/Modules/posixmodule.c
+++ b/Modules/posixmodule.c
@@ -920,7 +920,7 @@ path_converter(PyObject *o, void *p)
 
     if (is_unicode) {
 #ifdef MS_WINDOWS
-        wide = PyUnicode_AsWideCharString(o, &length);
+        wide = PyUnicode_AsUnicodeAndSize(o, &length);
         if (!wide) {
             goto exit;
         }
-- 
2.40.0