From 815f23bddd6f5cc4c34729d401d2c59841238143 Mon Sep 17 00:00:00 2001
From: David Wilson <dw@botanicus.net>
Date: Thu, 28 Sep 2017 18:09:03 +0530
Subject: [PATCH] Sense of block= parameter was inverted.

---
 mitogen/core.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mitogen/core.py b/mitogen/core.py
index db2ce8c1..5570ebec 100644
--- a/mitogen/core.py
+++ b/mitogen/core.py
@@ -273,7 +273,7 @@ def _queue_interruptible_get(queue, timeout=None, block=True):
         try:
             msg = queue.get(block, 0.5)
         except Queue.Empty:
-            if block:
+            if not block:
                 break
 
     if msg is None: