From 177d14c8eaf66aa5b712210975e6794b31c9558e Mon Sep 17 00:00:00 2001
From: Julian Oes <julian@oes.ch>
Date: Tue, 20 Nov 2018 14:27:44 +0100
Subject: [PATCH] px_romfs_pruner.py: remove deprecation warning

The open flag `U` causes a deprecation warning starting with Python 3.4.
The option to open all kinds of newlines as `\n` has been replaced with
the argument `newline=None`. However, this argument is not available for
Python 2 unless we use `io.open` instead of `open`.
---
 Tools/px_romfs_pruner.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Tools/px_romfs_pruner.py b/Tools/px_romfs_pruner.py
index 1b2518719f..7fc45fb212 100644
--- a/Tools/px_romfs_pruner.py
+++ b/Tools/px_romfs_pruner.py
@@ -49,6 +49,7 @@ from __future__ import print_function
 import argparse
 import re
 import os
+import io
 
 
 def main():
@@ -88,7 +89,7 @@ def main():
             # read file line by line
             pruned_content = ""
             board_excluded = False
-            with open(file_path, "rU") as f:
+            with io.open(file_path, "r", newline=None) as f:
                 for line in f:
                     if re.search(r'\b{0} exclude\b'.format(args.board),line):
                         board_excluded = True;