From 527eecae80f41965ebf6aa3847baecaa41b1158c Mon Sep 17 00:00:00 2001
From: Andrew Murray <radarhere@users.noreply.github.com>
Date: Tue, 5 Jul 2022 13:42:41 +1000
Subject: [PATCH] Fallback to python3

---
 src/PIL/ImageShow.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/PIL/ImageShow.py b/src/PIL/ImageShow.py
index 5ca8035b1..1b2b9f05f 100644
--- a/src/PIL/ImageShow.py
+++ b/src/PIL/ImageShow.py
@@ -178,10 +178,11 @@ class MacViewer(Viewer):
             else:
                 raise TypeError("Missing required argument: 'path'")
         subprocess.call(["open", "-a", "Preview.app", path])
-        if sys.executable:
+        exectable = sys.executable or shutil.which("python3")
+        if executable:
             subprocess.Popen(
                 [
-                    sys.executable,
+                    executable,
                     "-c",
                     "import os, sys, time; time.sleep(20); os.remove(sys.argv[1])",
                     path,