fix python stdout and stderr integration

ai/server.py

@@ -60,6 +60,4 @@ class Server:
         port = port or 8900
         with self.HTTPServer(("127.0.0.1", port), handler) as httpd:
             print("serving at http://127.0.0.1:" + str(port))
-            import sys
-            sys.stdout.flush()
             httpd.serve_forever()