From: Ben Darnell <ben@bendarnell.com>
Date: Sun, 19 Jan 2020 16:00:06 +0000 (-0500)
Subject: test: Add hasattr check for SIGCHLD
X-Git-Tag: v6.1.0b1~40^2~3
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e7330e65a92b60dd405eb36e1f424e0553a1ae87;p=thirdparty%2Ftornado.git

test: Add hasattr check for SIGCHLD

This name is not present on all platforms
---

diff --git a/tornado/test/twisted_test.py b/tornado/test/twisted_test.py
index 0e03cec9f..2fc3f8e30 100644
--- a/tornado/test/twisted_test.py
+++ b/tornado/test/twisted_test.py
@@ -51,7 +51,10 @@ skipIfNoTwisted = unittest.skipUnless(have_twisted, "twisted module not present"
 
 def save_signal_handlers():
     saved = {}
-    for sig in [signal.SIGINT, signal.SIGTERM, signal.SIGCHLD]:
+    signals = [signal.SIGINT, signal.SIGTERM]
+    if hasattr(signal, "SIGCHLD"):
+        signals.append(signal.SIGCHLD)
+    for sig in signals:
         saved[sig] = signal.getsignal(sig)
     if "twisted" in repr(saved):
         # This indicates we're not cleaning up after ourselves properly.