From 092d612cf9aad5b253c49b24abe5d3ad752b8b58 Mon Sep 17 00:00:00 2001
From: Joel Rosdahl <joel@rosdahl.net>
Date: Thu, 25 May 2017 22:16:33 +0200
Subject: Fix Python 3 crash after disconnecting an unresponsive client

Fixes #28.
---
 CHANGES  | 4 ++++
 miniircd | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/CHANGES b/CHANGES
index f4730f6..0f343eb 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,7 @@
+Unreleased
+
+  * Fixed Python 3 crash after disconnecting an unresponsive client.
+
 1.2 (2017-05-22)
 
   * Find certificate specified with relative path when using --daemon.
diff --git a/miniircd b/miniircd
index 0516ea8..f2d8e9f 100755
--- a/miniircd
+++ b/miniircd
@@ -910,7 +910,7 @@ class Server(object):
                     self.clients[x].socket_writable_notification()
             now = time.time()
             if last_aliveness_check + 10 < now:
-                for client in self.clients.values():
+                for client in list(self.clients.values()):
                     client.check_aliveness()
                 last_aliveness_check = now
 
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