set linger on every socket I can find

help cleanup sockets on 3.4

IPython/kernel/channels.py

@@ -209,6 +209,7 b' class ShellChannel(ZMQSocketChannel):'
     def run(self):
         """The thread's main activity.  Call start() instead."""
         self.socket = self.context.socket(zmq.DEALER)
+        self.socket.linger = 1000
         self.socket.setsockopt(zmq.IDENTITY, self.session.bsession)
         self.socket.connect(self.address)
         self.stream = zmqstream.ZMQStream(self.socket, self.ioloop)
@@ -408,6 +409,7 b' class IOPubChannel(ZMQSocketChannel):'
     def run(self):
         """The thread's main activity.  Call start() instead."""
         self.socket = self.context.socket(zmq.SUB)
+        self.socket.linger = 1000
         self.socket.setsockopt(zmq.SUBSCRIBE,b'')
         self.socket.setsockopt(zmq.IDENTITY, self.session.bsession)
         self.socket.connect(self.address)
@@ -468,6 +470,7 b' class StdInChannel(ZMQSocketChannel):'
     def run(self):
         """The thread's main activity.  Call start() instead."""
         self.socket = self.context.socket(zmq.DEALER)
+        self.socket.linger = 1000
         self.socket.setsockopt(zmq.IDENTITY, self.session.bsession)
         self.socket.connect(self.address)
         self.stream = zmqstream.ZMQStream(self.socket, self.ioloop)
@@ -518,7 +521,7 b' class HBChannel(ZMQSocketChannel):'
             self.poller.unregister(self.socket)
             self.socket.close()
         self.socket = self.context.socket(zmq.REQ)
-        self.socket.setsockopt(zmq.LINGER, 0)
+        self.socket.linger = 1000
         self.socket.connect(self.address)
 
         self.poller.register(self.socket, zmq.POLLIN)

IPython/kernel/zmq/heartbeat.py

@@ -53,6 +53,7 b' class Heartbeat(Thread):'
 
     def run(self):
         self.socket = self.context.socket(zmq.REP)
+        self.socket.linger = 1000
         c = ':' if self.transport == 'tcp' else '-'
         self.socket.bind('%s://%s' % (self.transport, self.ip) + c + str(self.port))
         while True:

IPython/kernel/zmq/kernelapp.py

@@ -298,18 +298,22 b' class IPKernelApp(BaseIPythonApplication, InteractiveShellApp):'
         # atexit.register(context.term)
 
         self.shell_socket = context.socket(zmq.ROUTER)
+        self.shell_socket.linger = 1000
         self.shell_port = self._bind_socket(self.shell_socket, self.shell_port)
         self.log.debug("shell ROUTER Channel on port: %i" % self.shell_port)
 
         self.iopub_socket = context.socket(zmq.PUB)
+        self.iopub_socket.linger = 1000
         self.iopub_port = self._bind_socket(self.iopub_socket, self.iopub_port)
         self.log.debug("iopub PUB Channel on port: %i" % self.iopub_port)
 
         self.stdin_socket = context.socket(zmq.ROUTER)
+        self.stdin_socket.linger = 1000
         self.stdin_port = self._bind_socket(self.stdin_socket, self.stdin_port)
         self.log.debug("stdin ROUTER Channel on port: %i" % self.stdin_port)
 
         self.control_socket = context.socket(zmq.ROUTER)
+        self.control_socket.linger = 1000
         self.control_port = self._bind_socket(self.control_socket, self.control_port)
         self.log.debug("control ROUTER Channel on port: %i" % self.control_port)