upstream/ipython Files · IPython/core/payloadpage.py

Simplify completer handling by isolating readline-specific logic more....

Simplify completer handling by isolating readline-specific logic more. Also, I removed a hack we were using of storing the completer globally inside sys. This was used for the rare case of embedding ipython-inside-ipython, something which is more of a party trick. If we ever want to support that well, we can write a cleaner solution than polluting sys with 'ipcompleter'. But for now, I'm trying to simplify our completer machinery and remove buggy and/or error-prone hacks. Note that the normal use of embedded ipython inside of user's programs isn't affected by this.

Brian Granger - - Load All Authors

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      #!/usr/bin/env python

      # encoding: utf-8

      """

      A payload based version of page.

      Authors:

      * Brian Granger

      * Fernando Perez

      """

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

      #  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

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

      from IPython.core.interactiveshell import InteractiveShell

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

      # Classes and functions

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

      def page(strng, start=0, screen_lines=0, pager_cmd=None):

          """Print a string, piping through a pager.

          This version ignores the screen_lines and pager_cmd arguments and uses

          IPython's payload system instead.

          """

          # Some routines may auto-compute start offsets incorrectly and pass a

          # negative value.  Offset to 0 for robustness.

          start = max(0, start)

          shell = InteractiveShell.instance()

          payload = dict(

              source='IPython.zmq.page.page',

              data=strng,

              start_line_number=start

          )

          shell.payload_manager.write_payload(payload)

      def install_payload_page():

          """Install this version of page as IPython.core.page.page."""

          from IPython.core import page as corepage

          corepage.page = page

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				#!/usr/bin/env python
				# encoding: utf-8
				"""
				A payload based version of page.

				Authors:

				* Brian Granger
				* Fernando Perez
				"""

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

				from IPython.core.interactiveshell import InteractiveShell

				#-----------------------------------------------------------------------------
				# Classes and functions
				#-----------------------------------------------------------------------------

				def page(strng, start=0, screen_lines=0, pager_cmd=None):
				"""Print a string, piping through a pager.

				This version ignores the screen_lines and pager_cmd arguments and uses
				IPython's payload system instead.
				"""

				# Some routines may auto-compute start offsets incorrectly and pass a
				# negative value. Offset to 0 for robustness.
				start = max(0, start)
				shell = InteractiveShell.instance()
				payload = dict(
				source='IPython.zmq.page.page',
				data=strng,
				start_line_number=start
				)
				shell.payload_manager.write_payload(payload)

				def install_payload_page():
				"""Install this version of page as IPython.core.page.page."""
				from IPython.core import page as corepage
				corepage.page = page