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

Fix bug where 'if 1:' was being added to comment-only code....

Fix bug where 'if 1:' was being added to comment-only code. Found by trying to paste and run this example: http://matplotlib.sourceforge.net/examples/api/collections_demo.html that happened to have indented, comment-only lines of the type: code() # comment code() In these cases, we should *not* try to prepend 'if 1:' to the user's code since that comment by itself isn't executable, and it will cause a compiler IndentationError.

Brian Granger - - Load All Authors

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             heartbeat.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

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

      # Code

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

      class Heartbeat(Thread):

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

          def __init__(self, context, addr=('127.0.0.1', 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

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


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

				def __init__(self, context, addr=('127.0.0.1', 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)