From 75e93fe26674cd8d3d110815034f8e843ac15041 Mon Sep 17 00:00:00 2001
From: Inada Naoki <songofacandy@gmail.com>
Date: Thu, 1 Apr 2021 11:52:11 +0900
Subject: [PATCH] bpo-43651: Fix EncodingWarning in lib2to3/pgen2/pgen.py

---
 Lib/lib2to3/pgen2/pgen.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Lib/lib2to3/pgen2/pgen.py b/Lib/lib2to3/pgen2/pgen.py
index b0cbd16c4dad4f..7abd5cef1c36bb 100644
--- a/Lib/lib2to3/pgen2/pgen.py
+++ b/Lib/lib2to3/pgen2/pgen.py
@@ -12,7 +12,7 @@ class ParserGenerator(object):
     def __init__(self, filename, stream=None):
         close_stream = None
         if stream is None:
-            stream = open(filename)
+            stream = open(filename, encoding="utf-8")
             close_stream = stream.close
         self.filename = filename
         self.stream = stream