From: Štěpán Balážik <stepan@isc.org>
Date: Tue, 27 Jan 2026 22:28:06 +0000 (+0100)
Subject: Fix 'Using open without explicitly specifying an encoding'
X-Git-Tag: v9.21.19~15^2~27
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=38a47d9f7c9daba9c83e71ec8fc4ff8e90afd569;p=thirdparty%2Fbind9.git

Fix 'Using open without explicitly specifying an encoding'

In preparation for running pylint on more code.
---

diff --git a/bin/tests/system/tcp/ans6/ans.py b/bin/tests/system/tcp/ans6/ans.py
index a9df8b7df7d..1617f31ddcd 100644
--- a/bin/tests/system/tcp/ans6/ans.py
+++ b/bin/tests/system/tcp/ans6/ans.py
@@ -118,7 +118,7 @@ def main():
 
     signal.signal(signal.SIGTERM, sigterm)
 
-    with open("ans.pid", "w") as pidfile:
+    with open("ans.pid", "w", encoding="utf-8") as pidfile:
         print(os.getpid(), file=pidfile)
 
     listenip = "10.53.0.6"