commit 8bbfeb3330c10d52274bb85fce59ae614f0500bf
author Inada Naoki <songofacandy@gmail.com> Fri Apr 02 12:53:46 2021 +0900
committer GitHub <noreply@github.com> Fri Apr 02 12:53:46 2021 +0900
tree e599878998ff1f8b1cf61bce14ff2a2037871a87
parent bef7b26f7229f8b7cde843118a7bc7e2b00f0372

bpo-43651: PEP 597: Fix EncodingWarning in some tests (GH-25142)

* test__xxsubinterpreters
* test_builtin
* test_doctest
* test_exceptions
* test_opcodes
* test_support
* test_argparse
* test_baseexception
* test_bdb
* test_bool
* test_asdl_parser

Lib/test/test__xxsubinterpreters.py

diff --git a/Lib/test/test__xxsubinterpreters.py b/Lib/test/test__xxsubinterpreters.py
index cf34fc3..7baea69 100644
--- a/Lib/test/test__xxsubinterpreters.py
+++ b/Lib/test/test__xxsubinterpreters.py
@@ -25,11 +25,11 @@ def _captured_script(script):
     indented = script.replace('\n', '\n                ')
     wrapped = dedent(f"""
         import contextlib
-        with open({w}, 'w') as spipe:
+        with open({w}, 'w', encoding="utf-8") as spipe:
             with contextlib.redirect_stdout(spipe):
                 {indented}
         """)
-    return wrapped, open(r)
+    return wrapped, open(r, encoding="utf-8")
 
 
 def _run_output(interp, request, shared=None):
@@ -45,7 +45,7 @@ def _running(interp):
     def run():
         interpreters.run_string(interp, dedent(f"""
             # wait for "signal"
-            with open({r}) as rpipe:
+            with open({r}, encoding="utf-8") as rpipe:
                 rpipe.read()
             """))
 
@@ -54,7 +54,7 @@ def run():
 
     yield
 
-    with open(w, 'w') as spipe:
+    with open(w, 'w', encoding="utf-8") as spipe:
         spipe.write('done')
     t.join()
 
@@ -806,7 +806,7 @@ def f():
     @unittest.skipUnless(hasattr(os, 'fork'), "test needs os.fork()")
     def test_fork(self):
         import tempfile
-        with tempfile.NamedTemporaryFile('w+') as file:
+        with tempfile.NamedTemporaryFile('w+', encoding="utf-8") as file:
             file.write('')
             file.flush()
 
@@ -816,7 +816,7 @@ def test_fork(self):
                 try:
                     os.fork()
                 except RuntimeError:
-                    with open('{file.name}', 'w') as out:
+                    with open('{file.name}', 'w', encoding='utf-8') as out:
                         out.write('{expected}')
                 """)
             interpreters.run_string(self.id, script)