Update Lib/_pyrepl/unix_console.py

Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>

Author: yihong0618

Lib/_pyrepl/unix_console.py

@@ -419,8 +419,7 @@ def get_event(self, block: bool = True) -> Event | None:
                         else:
                             continue
                     elif err.errno == errno.EIO:
-                        import sys
-                        sys.exit(errno.EIO)
+                        raise SystemExit(errno.EIO)
                     else:
                         raise
                 else: