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bpo-47000: Make io.text_encoding() respects UTF-8 mode (GH-32003)

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Co-authored-by: Eric Snow <ericsnowcurrently@gmail.com>
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Inada Naoki 2022-04-04 11:46:57 +09:00 • committed by GitHub
parent 6db2db91b9
commit 4216dce04b
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10 changed files with 52 additions and 17 deletions
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11
Lib/test/test_io.py
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@ -4289,6 +4289,17 @@ class MiscIOTest(unittest.TestCase):
self.assertTrue(
warnings[1].startswith(b"<string>:8: EncodingWarning: "))
def test_text_encoding(self):
# PEP 597, bpo-47000. io.text_encoding() returns "locale" or "utf-8"
# based on sys.flags.utf8_mode
code = "import io; print(io.text_encoding(None))"
proc = assert_python_ok('-X', 'utf8=0', '-c', code)
self.assertEqual(b"locale", proc.out.strip())
proc = assert_python_ok('-X', 'utf8=1', '-c', code)
self.assertEqual(b"utf-8", proc.out.strip())
@support.cpython_only
# Depending if OpenWrapper was already created or not, the warning is
# emitted or not. For example, the attribute is already created when this