upstream/ipython Files · IPython/utils/cursesimport.py

Add init_environment(), %less, %more, %man and %clear/%cls, in zmq shell....

Add init_environment(), %less, %more, %man and %clear/%cls, in zmq shell. These are all things that normally need direct terminal control and users are likely to call them via !, blocking their session because the pager will be invoked and we can't pass keystrokes to it. So for the zmq shell, we implement a few very common things as magics.

Brian Granger - - Load All Authors

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             cursesimport.py
        
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      # encoding: utf-8

      """

      See if we have curses.

      """

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

      #  Copyright (C) 2008-2009  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

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

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

      # Code

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

      # Curses and termios are Unix-only modules

      try:

          import curses

          # We need termios as well, so if its import happens to raise, we bail on

          # using curses altogether.

          import termios

      except ImportError:

          use_curses = False

      else:

          # Curses on Solaris may not be complete, so we can't use it there

          use_curses = hasattr(curses,'initscr')

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				# encoding: utf-8
				"""
				See if we have curses.
				"""

				#-----------------------------------------------------------------------------
				# Copyright (C) 2008-2009 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
				#-----------------------------------------------------------------------------

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

				# Curses and termios are Unix-only modules
				try:
				import curses
				# We need termios as well, so if its import happens to raise, we bail on
				# using curses altogether.
				import termios
				except ImportError:
				use_curses = False
				else:
				# Curses on Solaris may not be complete, so we can't use it there
				use_curses = hasattr(curses,'initscr')