From 3afbf2d4ad589afe72800c4d2c61bf0b4eed03f5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bartosz=20S=C5=82awecki?= <bartosz@ilikepython.com>
Date: Mon, 22 Dec 2025 08:05:15 +0100
Subject: [PATCH] gh-143046: Make asyncio REPL respect the `-q` flag (quiet
 mode) (GH-143047) (cherry picked from commit
 6213a512bf42464e35ae5090358b80aaa64904cc)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Co-authored-by: Bartosz Sławecki <bartosz@ilikepython.com>
---
 Lib/asyncio/__main__.py                         | 17 +++++++++--------
 Lib/test/test_repl.py                           |  6 ++++++
 ...25-12-21-17-44-28.gh-issue-143046.GBa5Ip.rst |  2 ++
 3 files changed, 17 insertions(+), 8 deletions(-)
 create mode 100644 Misc/NEWS.d/next/Library/2025-12-21-17-44-28.gh-issue-143046.GBa5Ip.rst

diff --git a/Lib/asyncio/__main__.py b/Lib/asyncio/__main__.py
index 62f65192df7091..e1b9026dd57dcb 100644
--- a/Lib/asyncio/__main__.py
+++ b/Lib/asyncio/__main__.py
@@ -84,14 +84,15 @@ def run(self):
         global return_code
 
         try:
-            banner = (
-                f'asyncio REPL {sys.version} on {sys.platform}\n'
-                f'Use "await" directly instead of "asyncio.run()".\n'
-                f'Type "help", "copyright", "credits" or "license" '
-                f'for more information.\n'
-            )
-
-            console.write(banner)
+            if not sys.flags.quiet:
+                banner = (
+                    f'asyncio REPL {sys.version} on {sys.platform}\n'
+                    f'Use "await" directly instead of "asyncio.run()".\n'
+                    f'Type "help", "copyright", "credits" or "license" '
+                    f'for more information.\n'
+                )
+
+                console.write(banner)
 
             if startup_path := os.getenv("PYTHONSTARTUP"):
                 sys.audit("cpython.run_startup", startup_path)
diff --git a/Lib/test/test_repl.py b/Lib/test/test_repl.py
index 58bd2b5d916858..17bc53d20c39d2 100644
--- a/Lib/test/test_repl.py
+++ b/Lib/test/test_repl.py
@@ -409,6 +409,12 @@ def test_toplevel_contextvars_async(self):
         expected = "toplevel contextvar test: ok"
         self.assertIn(expected, output, expected)
 
+    def test_quiet_mode(self):
+        p = spawn_repl("-q", "-m", "asyncio", custom=True)
+        output = kill_python(p)
+        self.assertEqual(p.returncode, 0)
+        self.assertEqual(output[:3], ">>>")
+
 
 if __name__ == "__main__":
     unittest.main()
diff --git a/Misc/NEWS.d/next/Library/2025-12-21-17-44-28.gh-issue-143046.GBa5Ip.rst b/Misc/NEWS.d/next/Library/2025-12-21-17-44-28.gh-issue-143046.GBa5Ip.rst
new file mode 100644
index 00000000000000..ac819a47f4cde9
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2025-12-21-17-44-28.gh-issue-143046.GBa5Ip.rst
@@ -0,0 +1,2 @@
+The :mod:`asyncio` REPL no longer prints copyright and version messages in
+the quiet mode (:option:`-q`). Patch by Bartosz Sławecki.