[issue35633] test_eintr fails on AIX since fcntl functions were modified

[STINNER Victor]

STINNER Victor <vstinner at redhat.com> added the comment:

Since you are getting indentation error, I'm not sure about your test. Can you please apply the patch below and run again test_eintr? Does it still fail with PermissionError?

diff --git a/Lib/test/eintrdata/eintr_tester.py b/Lib/test/eintrdata/eintr_tester.py
index 25c169bde5..4db5dc9045 100644
--- a/Lib/test/eintrdata/eintr_tester.py
+++ b/Lib/test/eintrdata/eintr_tester.py
@@ -492,13 +492,13 @@ class FNTLEINTRTest(EINTRBaseTest):
         self.addCleanup(support.unlink, support.TESTFN)
         code = '\n'.join((
             "import fcntl, time",
-            "with open('%s', 'wb') as f:" % support.TESTFN,
+            "with open('%s', 'w+b') as f:" % support.TESTFN,
             "   fcntl.%s(f, fcntl.LOCK_EX)" % lock_name,
             "   time.sleep(%s)" % self.sleep_time))
         start_time = time.monotonic()
         proc = self.subprocess(code)
         with kill_on_error(proc):
-            with open(support.TESTFN, 'wb') as f:
+            with open(support.TESTFN, 'w+b') as f:
                 while True:  # synchronize the subprocess
                     dt = time.monotonic() - start_time
                     if dt > 60.0:

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<https://bugs.python.org/issue35633>
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