From 4d6d27991eb8279fe8077c4dedae51780a8c3426 Mon Sep 17 00:00:00 2001
From: Neal Powell <36735795+pashneal@users.noreply.github.com>
Date: Sun, 11 Jan 2026 18:00:08 -0500
Subject: [PATCH] Handle process creation differently for Windows and Unix

Linux systems do not support the creationflags parameter - This PR attempts to fix that by using the `start_new_session` parameter on non-windows systems instead.
---
 .../crossplay_python/battlecode26/__main__.py | 30 +++++++++++++------
 1 file changed, 21 insertions(+), 9 deletions(-)

diff --git a/engine/src/crossplay_python/battlecode26/__main__.py b/engine/src/crossplay_python/battlecode26/__main__.py
index 6685e9d1..15122866 100644
--- a/engine/src/crossplay_python/battlecode26/__main__.py
+++ b/engine/src/crossplay_python/battlecode26/__main__.py
@@ -280,15 +280,27 @@ def main(args=None):
         get_code(team_a, dir_a)
         get_code(team_b, dir_b)
 
-        Popen(
-            new_args,
-            shell=False,
-            stdin=None,
-            stdout=None,
-            stderr=None,
-            close_fds=True,
-            creationflags=DETACHED_PROCESS,
-        )
+        if os.name == "nt": 
+            Popen(
+                new_args,
+                shell=False,
+                stdin=None,
+                stdout=None,
+                stderr=None,
+                close_fds=True,
+                creationflags=DETACHED_PROCESS,
+            )
+        else:
+            Popen(
+                new_args,
+                shell=False,
+                stdin=None,
+                stdout=None,
+                stderr=None,
+                close_fds=True,
+                start_new_session=True
+            )
+        
     else:
         play(team_a=parsed_args.teamA, team_b=parsed_args.teamB,
              dir_a=parsed_args.dirA, dir_b=parsed_args.dirB,