From 9650055519a325ac057240b64996cd1f7a4b3088 Mon Sep 17 00:00:00 2001
From: Tyler Goodlet <jgbt@protonmail.com>
Date: Fri, 21 Jan 2022 09:05:35 -0500
Subject: [PATCH] Use `.exitcode` which is poll + error handling

---
 tractor/_spawn.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tractor/_spawn.py b/tractor/_spawn.py
index f15f7b3..3d7e6b1 100644
--- a/tractor/_spawn.py
+++ b/tractor/_spawn.py
@@ -526,7 +526,7 @@ async def mp_new_proc(
 
         # XXX: monkey patch poll API to match the ``subprocess`` API..
         # not sure why they don't expose this but kk.
-        proc.poll = proc._popen.poll  # type: ignore
+        proc.poll = lambda: proc.exitcode  # type: ignore
 
     # except:
         # TODO: in the case we were cancelled before the sub-proc