From 5284f80268ea58f426d2cd1ebca02b702d16cca5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20v=2E=20L=C3=B6wis?= <martin@v.loewis.de>
Date: Thu, 1 Aug 2013 18:31:06 +0200
Subject: Issue #18569: The installer now adds .py to the PATHEXT variable when
 extensions are registered. Patch by Paul Moore.

---
 Misc/NEWS        | 6 ++++++
 Tools/msi/msi.py | 4 ++++
 2 files changed, 10 insertions(+)

diff --git a/Misc/NEWS b/Misc/NEWS
index 41ba1a8..35ffbfd 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -734,6 +734,12 @@ IDLE
 - Issue #17532: Always include Options menu for IDLE on OS X.
   Patch by Guilherme Simões.
 
+Windows
+-------
+
+- Issue #18569: The installer now adds .py to the PATHEXT variable when extensions
+  are registered. Patch by Paul Moore.
+
 Build
 -----
 
diff --git a/Tools/msi/msi.py b/Tools/msi/msi.py
index 8d088ff..3e3cef1 100644
--- a/Tools/msi/msi.py
+++ b/Tools/msi/msi.py
@@ -1270,6 +1270,10 @@ def add_registry(db):
               "{60254CA5-953B-11CF-8C96-00AA00B8708C}", "REGISTRY.def"),
             ])
 
+    # PATHEXT
+    add_data(db, "Environment",
+             [("PathExtAddition", "=-*PathExt", "[~];.PY", "REGISTRY.def")])
+
     # Registry keys
     prefix = r"Software\%sPython\PythonCore\%s" % (testprefix, short_version)
     add_data(db, "Registry",
-- 
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