bpo-36683: Rename duplicate test_io_encoding to test_pyio_encoding (GH-12896)

diff --git a/Lib/test/test_utf8_mode.py b/Lib/test/test_utf8_mode.py
index 2429b00459be51ded35c8afc74091711f881aeba..bdb93457cfc40594709c4747a7b27cadeb8fd18d 100644 (file)
--- a/Lib/test/test_utf8_mode.py
+++ b/Lib/test/test_utf8_mode.py
@@ -195,7 +195,7 @@ class UTF8ModeTests(unittest.TestCase):
     def test_io_encoding(self):
         self.check_io_encoding('io')
 
-    def test_io_encoding(self):
+    def test_pyio_encoding(self):
         self.check_io_encoding('_pyio')
 
     def test_locale_getpreferredencoding(self):