From 41efe592c5c95a1d66644057dcd3a98188d4c4a3 2015-06-16 10:02:42
From: Brian Gough <bjg@network-theory.co.uk>
Date: 2015-06-16 10:02:42
Subject: [PATCH] support self.ports as dict or list in cleanup_ipc_files

zmq uses a dict instead of a list

---

diff --git a/IPython/kernel/connect.py b/IPython/kernel/connect.py
index 0c84811..e1902dd 100644
--- a/IPython/kernel/connect.py
+++ b/IPython/kernel/connect.py
@@ -472,7 +472,12 @@ class ConnectionFileMixin(LoggingConfigurable):
         """Cleanup ipc files if we wrote them."""
         if self.transport != 'ipc':
             return
-        for port in self.ports:
+        # handle self.ports as a list [port1, ...] or dictionary
+        # {label1: port1, ...}
+        ports = self.ports
+        if isinstance(ports, dict):
+            ports = ports.values()
+        for port in ports:
             ipcfile = "%s-%i" % (self.ip, port)
             try:
                 os.remove(ipcfile)