From bc2ce57203e1f355004ec95953eae9dec780ef9a Mon Sep 17 00:00:00 2001
From: Amaury Forgeot d'Arc <amauryfa@gmail.com>
Date: Fri, 5 Dec 2008 01:02:21 +0000
Subject: [PATCH] Issue #4537: webbrowser.UnixBrowser failed because this
 module defines an open() function which shadows the builtin.

Will backport to 3.0
---
 Lib/webbrowser.py | 2 +-
 Misc/NEWS         | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/Lib/webbrowser.py b/Lib/webbrowser.py
index 4772adc6c05..18dc11b191b 100644
--- a/Lib/webbrowser.py
+++ b/Lib/webbrowser.py
@@ -223,7 +223,7 @@ class UnixBrowser(BaseBrowser):
         cmdline = [self.name] + raise_opt + args
 
         if remote or self.background:
-            inout = open(os.devnull, "r+")
+            inout = io.open(os.devnull, "r+")
         else:
             # for TTY browsers, we need stdin/out
             inout = None
diff --git a/Misc/NEWS b/Misc/NEWS
index d4e749f58c0..15e3401c597 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -16,6 +16,9 @@ Core and Builtins
 Library
 -------
 
+- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
+  it was calling the wrong open() function.
+
 - Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
   support unusual filenames (such as those containing semi-colons) in
   Content-Disposition headers.