From 0958d0f4a5e65c0002992dcab9aa98d0750c4b41 Mon Sep 17 00:00:00 2001
From: ggqlq <124190229+ggqlq@users.noreply.github.com>
Date: Tue, 19 Aug 2025 04:54:39 +0800
Subject: [PATCH] gh-134869: Fix Ctrl+C corrupts REPL  autocomplete (GH-134929)
 (cherry picked from commit 8750e5ecfcfbc337efb511046d34f28b2d26bd68)

Co-authored-by: ggqlq <124190229+ggqlq@users.noreply.github.com>
---
 Lib/_pyrepl/simple_interact.py                                   | 1 +
 .../next/Library/2025-08-18-16-02-51.gh-issue-134869.GnAjnU.rst  | 1 +
 2 files changed, 2 insertions(+)
 create mode 100644 Misc/NEWS.d/next/Library/2025-08-18-16-02-51.gh-issue-134869.GnAjnU.rst

diff --git a/Lib/_pyrepl/simple_interact.py b/Lib/_pyrepl/simple_interact.py
index e686526870e364..8fb2359fb51e8a 100644
--- a/Lib/_pyrepl/simple_interact.py
+++ b/Lib/_pyrepl/simple_interact.py
@@ -156,6 +156,7 @@ def maybe_run_command(statement: str) -> bool:
             input_n += 1
         except KeyboardInterrupt:
             r = _get_reader()
+            r.cmpltn_reset()
             if r.input_trans is r.isearch_trans:
                 r.do_cmd(("isearch-end", [""]))
             r.pos = len(r.get_unicode())
diff --git a/Misc/NEWS.d/next/Library/2025-08-18-16-02-51.gh-issue-134869.GnAjnU.rst b/Misc/NEWS.d/next/Library/2025-08-18-16-02-51.gh-issue-134869.GnAjnU.rst
new file mode 100644
index 00000000000000..abb3579aa912d1
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2025-08-18-16-02-51.gh-issue-134869.GnAjnU.rst
@@ -0,0 +1 @@
+Fix an issue where pressing Ctrl+C during tab completion in the REPL would leave the autocompletion menu in a corrupted state.