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

Add pexpect version 2.3 (revision 507) to IPython.external....

Add pexpect version 2.3 (revision 507) to IPython.external. We will only use our copy if the system-installed one isn't found. This lets us run the core of ipython on top of the stdlib, while having far better subprocess control than we otherwise would on posix. On windows, pexpect doesn't exist, so the subprocess situation is still not ideal. pexpect is MIT-licensed. For more information on pexpect: http://www.noah.org/wiki/Pexpect

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             payloadpage.py
        
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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