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-rw-r--r--Lib/test/test_io.py5
1 files changed, 3 insertions, 2 deletions
diff --git a/Lib/test/test_io.py b/Lib/test/test_io.py
index e843cac..5c2c79b 100644
--- a/Lib/test/test_io.py
+++ b/Lib/test/test_io.py
@@ -32,7 +32,6 @@ import time
import unittest
import warnings
import weakref
-import _testcapi
from collections import deque, UserList
from itertools import cycle, count
from test import support
@@ -1977,8 +1976,10 @@ class TextIOWrapperTest(unittest.TestCase):
os.environ.clear()
os.environ.update(old_environ)
- # Issue 15989
+ @support.cpython_only
def test_device_encoding(self):
+ # Issue 15989
+ import _testcapi
b = self.BytesIO()
b.fileno = lambda: _testcapi.INT_MAX + 1
self.assertRaises(OverflowError, self.TextIOWrapper, b)