diff options
| -rw-r--r-- | Lib/test/test_bytes.py | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Lib/test/test_bytes.py b/Lib/test/test_bytes.py index 230dbf4..c64ac19 100644 --- a/Lib/test/test_bytes.py +++ b/Lib/test/test_bytes.py @@ -454,7 +454,8 @@ class BytesTest(BaseBytesTest): type2test = bytes def test_buffer_is_readonly(self): - with open(sys.stdin.fileno(), "rb", buffering=0) as f: + fd = os.dup(sys.stdin.fileno()) + with open(fd, "rb", buffering=0) as f: self.assertRaises(TypeError, f.readinto, b"") |