Issue #26926: Skip some test_io tests on platforms without large file support

diff --git a/Lib/test/test_io.py b/Lib/test/test_io.py
index 8a2111cbd71c6285301d1349b6b3b313ca3d5f53..aaa64eadffe1ea339fea217bc65eed63f8bf8d8b 100644 (file)
--- a/Lib/test/test_io.py
+++ b/Lib/test/test_io.py
@@ -350,7 +350,10 @@ class IOTest(unittest.TestCase):
     def large_file_ops(self, f):
         assert f.readable()
         assert f.writable()
-        self.assertEqual(f.seek(self.LARGE), self.LARGE)
+        try:
+            self.assertEqual(f.seek(self.LARGE), self.LARGE)
+        except (OverflowError, ValueError):
+            self.skipTest("no largefile support")
         self.assertEqual(f.tell(), self.LARGE)
         self.assertEqual(f.write(b"xxx"), 3)
         self.assertEqual(f.tell(), self.LARGE + 3)