From 55669f6cfc03e96cee236dc9b9cdeb1deb31cef0 Mon Sep 17 00:00:00 2001
From: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Date: Mon, 18 Apr 2022 02:32:06 +0100
Subject: Specify encoding

---
 sphinx/ext/coverage.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'sphinx/ext/coverage.py')

diff --git a/sphinx/ext/coverage.py b/sphinx/ext/coverage.py
index 3ebd095c2..1be815861 100644
--- a/sphinx/ext/coverage.py
+++ b/sphinx/ext/coverage.py
@@ -90,7 +90,7 @@ class CoverageBuilder(Builder):
         c_objects = self.env.domaindata['c']['objects']
         for filename in self.c_sourcefiles:
             undoc: Set[Tuple[str, str]] = set()
-            with open(filename) as f:
+            with open(filename, encoding="utf-8") as f:
                 for line in f:
                     for key, regex in self.c_regexes:
                         match = regex.match(line)
@@ -108,7 +108,7 @@ class CoverageBuilder(Builder):
 
     def write_c_coverage(self) -> None:
         output_file = path.join(self.outdir, 'c.txt')
-        with open(output_file, 'w') as op:
+        with open(output_file, 'w', encoding="utf-8") as op:
             if self.config.coverage_write_headline:
                 write_header(op, 'Undocumented C API elements', '=')
             op.write('\n')
@@ -227,7 +227,7 @@ class CoverageBuilder(Builder):
     def write_py_coverage(self) -> None:
         output_file = path.join(self.outdir, 'python.txt')
         failed = []
-        with open(output_file, 'w') as op:
+        with open(output_file, 'w', encoding="utf-8") as op:
             if self.config.coverage_write_headline:
                 write_header(op, 'Undocumented Python objects', '=')
             keys = sorted(self.py_undoc.keys())
-- 
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