gh-119553: Fix console when pressing Ctrl-C within a multiline block (#120075)

Lib/_pyrepl/commands.py

@@ -216,11 +216,13 @@ class interrupt(FinishCommand):
         import signal
 
         self.reader.console.finish()
+        self.reader.finish()
         os.kill(os.getpid(), signal.SIGINT)
 
 
 class ctrl_c(Command):
     def do(self) -> None:
+        self.reader.console.finish()
         self.reader.finish()
         raise KeyboardInterrupt
 

Lib/_pyrepl/simple_interact.py

@@ -149,7 +149,7 @@ def run_multiline_interactive_console(
             assert not more
             input_n += 1
         except KeyboardInterrupt:
-            console.write("\nKeyboardInterrupt\n")
+            console.write("KeyboardInterrupt\n")
             console.resetbuffer()
         except MemoryError:
             console.write("\nMemoryError\n")