From cdc45669a2deec3c76a57947bb9c74042194446a Mon Sep 17 00:00:00 2001
From: wolfpan <haoyupan@aliyun.com>
Date: Mon, 23 Nov 2020 08:32:01 +0800
Subject: [PATCH] explicitly specify encoding=utf-8 in apidoc

---
 sphinx/util/osutil.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sphinx/util/osutil.py b/sphinx/util/osutil.py
index 0390b038d..59fd059e6 100644
--- a/sphinx/util/osutil.py
+++ b/sphinx/util/osutil.py
@@ -222,14 +222,14 @@ class FileAvoidWrite:
         self._io.close()
 
         try:
-            with open(self._path) as old_f:
+            with open(self._path, encoding='utf-8') as old_f:
                 old_content = old_f.read()
                 if old_content == buf:
                     return
         except OSError:
             pass
 
-        with open(self._path, 'w') as f:
+        with open(self._path, 'w', encoding='utf-8') as f:
             f.write(buf)
 
     def __enter__(self) -> "FileAvoidWrite":