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

use ROUTER/DEALER socket names instead of XREP/XREQ...

use ROUTER/DEALER socket names instead of XREP/XREQ This is principally a big find/replace, but also adjusts the import-check for pyzmq/zmq versions in IPython.zmq and IPython.parallel. XREP/XREQ are aliases for ROUTER/DEALER in 0MQ 2.x. These sockets continue to exist in 3.0 under the ROUTER/DEALER name only. The XREP/XREQ protocols change some in 3.0, and won't work properly with current IPython. It is likely that once 3.0 is stable (and pyzmq supports it better), we will want to move some sockets back to the *new* XREP/XREQ, but this PR should make IPython safe through libzmq-3.x.

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

      #  Copyright (C) 2010  The IPython Development Team

      #

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

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

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

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

      # Verify zmq version dependency >= 2.1.4

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

      import re

      import warnings

      def check_for_zmq(minimum_version, module='IPython.zmq'):

          min_vlist = [int(n) for n in minimum_version.split('.')]

          try:

              import zmq

          except ImportError:

              raise ImportError("%s requires pyzmq >= %s"%(module, minimum_version))

          pyzmq_version = zmq.__version__

          vlist = [int(n) for n in re.findall(r'\d+', pyzmq_version)]

          if 'dev' not in pyzmq_version and vlist < min_vlist:

              raise ImportError("%s requires pyzmq >= %s, but you have %s"%(

                              module, minimum_version, pyzmq_version))

          # fix missing DEALER/ROUTER aliases in pyzmq < 2.1.9

          if not hasattr(zmq, 'DEALER'):

              zmq.DEALER = zmq.XREQ

          if not hasattr(zmq, 'ROUTER'):

              zmq.ROUTER = zmq.XREP

          if zmq.zmq_version() >= '4.0.0':

              warnings.warn("""libzmq 4 detected.

              It is unlikely that IPython's zmq code will work properly.

              Please install libzmq stable, which is 2.1.x or 2.2.x""",

              RuntimeWarning)

      check_for_zmq('2.1.4')

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

				#-----------------------------------------------------------------------------
				# Verify zmq version dependency >= 2.1.4
				#-----------------------------------------------------------------------------

				import re
				import warnings

				def check_for_zmq(minimum_version, module='IPython.zmq'):
				min_vlist = [int(n) for n in minimum_version.split('.')]

				try:
				import zmq
				except ImportError:
				raise ImportError("%s requires pyzmq >= %s"%(module, minimum_version))

				pyzmq_version = zmq.__version__
				vlist = [int(n) for n in re.findall(r'\d+', pyzmq_version)]

				if 'dev' not in pyzmq_version and vlist < min_vlist:
				raise ImportError("%s requires pyzmq >= %s, but you have %s"%(
				module, minimum_version, pyzmq_version))

				# fix missing DEALER/ROUTER aliases in pyzmq < 2.1.9
				if not hasattr(zmq, 'DEALER'):
				zmq.DEALER = zmq.XREQ
				if not hasattr(zmq, 'ROUTER'):
				zmq.ROUTER = zmq.XREP

				if zmq.zmq_version() >= '4.0.0':
				warnings.warn("""libzmq 4 detected.
				It is unlikely that IPython's zmq code will work properly.
				Please install libzmq stable, which is 2.1.x or 2.2.x""",
				RuntimeWarning)

				check_for_zmq('2.1.4')