upstream/ipython Files · IPython/zmq/heartbeat.py

Misc updates the display system....

Misc updates the display system. * PNG base64 encoding is now done at the ZMQ level, not in the display formatter itself. * All formatters are documented as to the exact nature of their return value. PNGs are not base64 encoded, LaTeX must include $/$$, Javascript should not have the <script> tags, etc. * Updated the Circle display example in docs/examples/core. * Renamed the sympy printing extension to sympyprinting.py.

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      """The client and server for a basic ping-pong style heartbeat.

      """

      #-----------------------------------------------------------------------------

      #  Copyright (C) 2008-2010  The IPython Development Team

      #

      #  Distributed under the terms of the BSD License.  The full license is in

      #  the file COPYING, distributed as part of this software.

      #-----------------------------------------------------------------------------

      #-----------------------------------------------------------------------------

      # Imports

      #-----------------------------------------------------------------------------

      import sys

      from threading import Thread

      import zmq

      from IPython.utils.localinterfaces import LOCALHOST

      #-----------------------------------------------------------------------------

      # Code

      #-----------------------------------------------------------------------------

      class Heartbeat(Thread):

          "A simple ping-pong style heartbeat that runs in a thread."

          def __init__(self, context, addr=(LOCALHOST, 0)):

              Thread.__init__(self)

              self.context = context

              self.addr = addr

              self.ip = addr[0]

              self.port = addr[1]

              self.daemon = True

          def run(self):

              self.socket = self.context.socket(zmq.REP)

              if self.port == 0:

                  self.port = self.socket.bind_to_random_port('tcp://%s' % self.ip)

              else:

                  self.socket.bind('tcp://%s:%i' % self.addr)

              zmq.device(zmq.FORWARDER, self.socket, self.socket)

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				"""The client and server for a basic ping-pong style heartbeat.
				"""

				#-----------------------------------------------------------------------------
				# Copyright (C) 2008-2010 The IPython Development Team
				#
				# Distributed under the terms of the BSD License. The full license is in
				# the file COPYING, distributed as part of this software.
				#-----------------------------------------------------------------------------

				#-----------------------------------------------------------------------------
				# Imports
				#-----------------------------------------------------------------------------

				import sys
				from threading import Thread

				import zmq

				from IPython.utils.localinterfaces import LOCALHOST

				#-----------------------------------------------------------------------------
				# Code
				#-----------------------------------------------------------------------------


				class Heartbeat(Thread):
				"A simple ping-pong style heartbeat that runs in a thread."

				def __init__(self, context, addr=(LOCALHOST, 0)):
				Thread.__init__(self)
				self.context = context
				self.addr = addr
				self.ip = addr[0]
				self.port = addr[1]
				self.daemon = True

				def run(self):
				self.socket = self.context.socket(zmq.REP)
				if self.port == 0:
				self.port = self.socket.bind_to_random_port('tcp://%s' % self.ip)
				else:
				self.socket.bind('tcp://%s:%i' % self.addr)
				zmq.device(zmq.FORWARDER, self.socket, self.socket)