From e60fbf1be7fc21c33c6447bd28f01146712c4a60 Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Mon, 20 Jul 2026 10:35:05 +0300
Subject: [PATCH 1/3] gh-154226: Fix test_posix_pty_functions on Solaris

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
---
 Lib/test/test_os/test_os.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Lib/test/test_os/test_os.py b/Lib/test/test_os/test_os.py
index 5c258ff89ba735c..41928b308c47799 100644
--- a/Lib/test/test_os/test_os.py
+++ b/Lib/test/test_os/test_os.py
@@ -4727,6 +4727,13 @@ def test_posix_pty_functions(self):
         son_path = os.ptsname(mother_fd)
         son_fd = os.open(son_path, os.O_RDWR|os.O_NOCTTY)
         self.addCleanup(os.close, son_fd)
+        if sys.platform.startswith('sunos'):
+            # The slave is not a terminal until these STREAMS modules
+            # are pushed onto it.
+            import fcntl
+            I_PUSH = 0x5302
+            fcntl.ioctl(son_fd, I_PUSH, b'ptem\0')
+            fcntl.ioctl(son_fd, I_PUSH, b'ldterm\0')
         self.assertEqual(os.ptsname(mother_fd), os.ttyname(son_fd))
 
     @warnings_helper.ignore_fork_in_thread_deprecation_warnings()

From 28a60e81ebad1fa7e257eaa3c67bb67f1927d97a Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Mon, 20 Jul 2026 11:18:22 +0300
Subject: [PATCH 2/3] Add a NEWS entry

---
 .../next/Tests/2026-07-20-14-05-00.gh-issue-154226.ptytest.rst  | 2 ++
 1 file changed, 2 insertions(+)
 create mode 100644 Misc/NEWS.d/next/Tests/2026-07-20-14-05-00.gh-issue-154226.ptytest.rst

diff --git a/Misc/NEWS.d/next/Tests/2026-07-20-14-05-00.gh-issue-154226.ptytest.rst b/Misc/NEWS.d/next/Tests/2026-07-20-14-05-00.gh-issue-154226.ptytest.rst
new file mode 100644
index 000000000000000..586f82e623bffe8
--- /dev/null
+++ b/Misc/NEWS.d/next/Tests/2026-07-20-14-05-00.gh-issue-154226.ptytest.rst
@@ -0,0 +1,2 @@
+Fix ``test_posix_pty_functions`` in :mod:`!test.test_os` on Solaris
+and illumos.

From 99425210257bdfc89bb146bcec7cd27f8d60b76f Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Mon, 20 Jul 2026 11:20:48 +0300
Subject: [PATCH 3/3] Remove the NEWS entry

---
 .../next/Tests/2026-07-20-14-05-00.gh-issue-154226.ptytest.rst  | 2 --
 1 file changed, 2 deletions(-)
 delete mode 100644 Misc/NEWS.d/next/Tests/2026-07-20-14-05-00.gh-issue-154226.ptytest.rst

diff --git a/Misc/NEWS.d/next/Tests/2026-07-20-14-05-00.gh-issue-154226.ptytest.rst b/Misc/NEWS.d/next/Tests/2026-07-20-14-05-00.gh-issue-154226.ptytest.rst
deleted file mode 100644
index 586f82e623bffe8..000000000000000
--- a/Misc/NEWS.d/next/Tests/2026-07-20-14-05-00.gh-issue-154226.ptytest.rst
+++ /dev/null
@@ -1,2 +0,0 @@
-Fix ``test_posix_pty_functions`` in :mod:`!test.test_os` on Solaris
-and illumos.