From 35b961c17b7a6dcbad98f4f3bfb9df115a28db29 Mon Sep 17 00:00:00 2001
From: Niklas Fiekas <niklas.fiekas@backscattering.de>
Date: Sun, 6 Aug 2023 10:47:25 +0200
Subject: [PATCH] Avoid start_new_session if possible

---
 chess/engine.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/chess/engine.py b/chess/engine.py
index 5f50a1414..01ee08b3e 100644
--- a/chess/engine.py
+++ b/chess/engine.py
@@ -1180,7 +1180,11 @@ async def popen(cls: Type[ProtocolT], command: Union[str, List[str]], *, setpgrp
                 popen_args["creationflags"] = popen_args.get("creationflags", 0) | subprocess.CREATE_NEW_PROCESS_GROUP  # type: ignore
             except AttributeError:
                 # Unix.
-                popen_args["start_new_session"] = True
+                if sys.version_info >= (3, 11):
+                    popen_args["process_group"] = 0
+                else:
+                    # Before Python 3.11
+                    popen_args["start_new_session"] = True
 
         return await asyncio.get_running_loop().subprocess_exec(cls, *command, **popen_args)