Fix ipykernel install (#1310)

ipython · Dec 17, 2024 · b11d42c · b11d42c
1 parent 188f39c
commit b11d42c
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/ipykernel/kernelapp.py b/ipykernel/kernelapp.py
@@ -734,6 +734,7 @@ def start(self) -> None:
         """Start the application."""
         if self.subapp is not None:
             self.subapp.start()
+            return
         if self.poller is not None:
             self.poller.start()
         backend = "trio" if self.trio_loop else "asyncio"