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

Lots of work on exception handling, including tests for traceback printing....

Lots of work on exception handling, including tests for traceback printing. We finally have some tests for various exception mode printing, via doctests that exercise all three modes! Also changed handling of sys.exit(X) to only print the summary message, as SystemExit is most often a 'handled' exception. It can still be 100% silenced via '%run -e', but now it's much less intrusive. Added a new %tb magic to print the last available traceback with the current xmode. One can then re-print the last traceback with more detail if desired, without having to cause it again.

Brian Granger - - Load All Authors

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      """Set of functions to work with console on Windows.

      """

      #*****************************************************************************

      #       Copyright (C) 2005 Alexander Belchenko <bialix@ukr.net>

      #

      #                This file is placed in the public domain.

      #

      #*****************************************************************************

      __author__  = 'Alexander Belchenko (e-mail: bialix AT ukr.net)'

      __license__ = 'Public domain'

      import struct

      try:

          import ctypes

      except ImportError:

          ctypes = None

      def get_console_size(defaultx=80, defaulty=25):

          """ Return size of current console.

          This function try to determine actual size of current working

          console window and return tuple (sizex, sizey) if success,

          or default size (defaultx, defaulty) otherwise.

          Dependencies: ctypes should be installed.

          """

          if ctypes is None:

              # no ctypes is found

              return (defaultx, defaulty)

          h = ctypes.windll.kernel32.GetStdHandle(-11)

          csbi = ctypes.create_string_buffer(22)

          res = ctypes.windll.kernel32.GetConsoleScreenBufferInfo(h, csbi)

          if res:

              (bufx, bufy, curx, cury, wattr,

               left, top, right, bottom, maxx, maxy) = struct.unpack("hhhhHhhhhhh",

                                                                     csbi.raw)

              sizex = right - left + 1

              sizey = bottom - top + 1

              return (sizex, sizey)

          else:

              return (defaultx, defaulty)

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				"""Set of functions to work with console on Windows.
				"""

				#*****************************************************************************
				# Copyright (C) 2005 Alexander Belchenko <bialix@ukr.net>
				#
				# This file is placed in the public domain.
				#
				#*****************************************************************************

				__author__ = 'Alexander Belchenko (e-mail: bialix AT ukr.net)'
				__license__ = 'Public domain'

				import struct

				try:
				import ctypes
				except ImportError:
				ctypes = None

				def get_console_size(defaultx=80, defaulty=25):
				""" Return size of current console.

				This function try to determine actual size of current working
				console window and return tuple (sizex, sizey) if success,
				or default size (defaultx, defaulty) otherwise.

				Dependencies: ctypes should be installed.
				"""
				if ctypes is None:
				# no ctypes is found
				return (defaultx, defaulty)

				h = ctypes.windll.kernel32.GetStdHandle(-11)
				csbi = ctypes.create_string_buffer(22)
				res = ctypes.windll.kernel32.GetConsoleScreenBufferInfo(h, csbi)

				if res:
				(bufx, bufy, curx, cury, wattr,
				left, top, right, bottom, maxx, maxy) = struct.unpack("hhhhHhhhhhh",
				csbi.raw)
				sizex = right - left + 1
				sizey = bottom - top + 1
				return (sizex, sizey)
				else:
				return (defaultx, defaulty)