[3.13] pythongh-131878: Handle top level exceptions in new pyrepl and prevent of closing it (pythonGH-131910)

(cherry picked from commit 99a0d7e)

Co-authored-by: Sergey Miryanov <[email protected]>
Co-authored-by: Łukasz Langa <[email protected]>

Author: sergey-miryanov

Lib/_pyrepl/simple_interact.py

@@ -163,3 +163,8 @@ def maybe_run_command(statement: str) -> bool:
         except MemoryError:
             console.write("\nMemoryError\n")
             console.resetbuffer()
+        except SystemExit:
+            raise
+        except:
+            console.showtraceback()
+            console.resetbuffer()

Misc/NEWS.d/next/Core and Builtins/2025-03-30-19-58-14.gh-issue-131878.uxM26H.rst

@@ -0,0 +1 @@
+Handle uncaught exceptions in the main input loop for the new REPL.