From a9bf71742cf0010a449e8801398ac36696d34c7e Mon Sep 17 00:00:00 2001
From: Min RK <benjaminrk@gmail.com>
Date: Fri, 5 May 2023 13:48:38 +0200
Subject: [PATCH] close event loop when we finish

---
 ipykernel/kernelapp.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ipykernel/kernelapp.py b/ipykernel/kernelapp.py
index 9628c7d5..723f5672 100644
--- a/ipykernel/kernelapp.py
+++ b/ipykernel/kernelapp.py
@@ -725,6 +725,8 @@ def start(self):
                 self.io_loop.start()
             except KeyboardInterrupt:
                 pass
+            finally:
+                self.io_loop.close()
 
 
 launch_new_instance = IPKernelApp.launch_instance