From: Bob Halley <halley@dnspython.org>
Date: Sat, 1 May 2021 21:19:16 +0000 (-0700)
Subject: If a message handler returned None, do not yield it to the caller.
X-Git-Tag: v2.2.0rc1~91^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3deb941a5434a35a8ba81b6cee006677d9d566dc;p=thirdparty%2Fdnspython.git

If a message handler returned None, do not yield it to the caller.

This is a bit cleaner than yielding it and having the caller throw an
exception trying to treat it as a message.
---

diff --git a/tests/nanonameserver.py b/tests/nanonameserver.py
index 18ba6c55..5c9a9c7e 100644
--- a/tests/nanonameserver.py
+++ b/tests/nanonameserver.py
@@ -237,7 +237,7 @@ class Server(threading.Thread):
                 out = thing.to_wire(self.origin, multi=multi, tsig_ctx=tsig_ctx)
                 tsig_ctx = thing.tsig_ctx
                 yield out
-            else:
+            elif thing is not None:
                 yield thing
 
     async def serve_udp(self):