Update src/napari_chatgpt/utils/network/demo/port_available_demo.py

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

src/napari_chatgpt/utils/network/demo/port_available_demo.py

@@ -1,27 +1,23 @@
 # main to test automatic port increment in the omega server:
 if __name__ == '__main__':
-    # now start a simple server asynchronously on that port to occupy it:
     import asyncio
     from aiohttp import web
 
-
-    # Define a simple handler that returns a simple response:
     async def handle(request):
         return web.Response(text="Hello, world")
 
-
-    # Start the server:
     app = web.Application()
     app.router.add_get('/', handle)
     runner = web.AppRunner(app)
     loop = asyncio.get_event_loop()
-    loop.run_until_complete(runner.setup())
-    site = web.TCPSite(runner, 'localhost', 9000)
-
-    # Start the server:
-    loop.run_until_complete(site.start())
 
-    # wait until key pressed on terminal:
-    input("Press Enter to continue...")
-    loop.run_until_complete(runner.cleanup())
-    loop.close()
+    try:
+        loop.run_until_complete(runner.setup())
+        site = web.TCPSite(runner, 'localhost', 9000)
+        loop.run_until_complete(site.start())
+        input("Press Enter to continue...")
+    except Exception as e:
+        print(f"Error occurred: {e}")
+    finally:
+        loop.run_until_complete(runner.cleanup())
+        loop.close()