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# Module: `kernel.zmq.displayhook`

Replacements for sys.displayhook that publish over ZMQ.

## 2 Classes

class `IPython.kernel.zmq.displayhook.``ZMQDisplayHook`(session, pub_socket)

  Bases: `object`

  A simple displayhook that publishes the object’s repr over a ZeroMQ socket.

  `__init__`(session, pub_socket)

class `IPython.kernel.zmq.displayhook.``ZMQShellDisplayHook`(shell=None, cache_size=1000, **kwargs)

  Bases: `IPython.core.displayhook.DisplayHook`

  A displayhook subclass that publishes data using ZeroMQ. This is intended to work with an InteractiveShell instance. It sends a dict of different representations of the object.

  `finish_displayhook`()

    Finish up all displayhook activities.

  `set_parent`(parent)

    Set the parent for outbound messages.

  `write_output_prompt`()

    Write the output prompt.

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