From 25b97289e44414daf3c88d8e953a43360deacb73 Mon Sep 17 00:00:00 2001
From: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Date: Sun, 17 Aug 2025 17:13:57 +0100
Subject: [PATCH] GH-137841: Open tzdata/zones file with UTF-8 encoding
 (#137872)

---
 Lib/zoneinfo/_tzpath.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Lib/zoneinfo/_tzpath.py b/Lib/zoneinfo/_tzpath.py
index 5db17bea045d..78fa6f00a859 100644
--- a/Lib/zoneinfo/_tzpath.py
+++ b/Lib/zoneinfo/_tzpath.py
@@ -124,7 +124,8 @@ def available_timezones():
     # Start with loading from the tzdata package if it exists: this has a
     # pre-assembled list of zones that only requires opening one file.
     try:
-        with resources.files("tzdata").joinpath("zones").open("r") as f:
+        zones_file = resources.files("tzdata").joinpath("zones")
+        with zones_file.open("r", encoding="utf-8") as f:
             for zone in f:
                 zone = zone.strip()
                 if zone:
-- 
2.47.3