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

Remove 5s wait on inactivity on GUI inputhook loops...

Remove 5s wait on inactivity on GUI inputhook loops The 5s (and 1s) waits were originally added in commit 5074878, but the 5 second wait meant if you left the console for 5+ minutes idle, it would take up to 5 seconds for a response to a keypress. This tradeoff of CPU cycles for battery life seems too far. Note that commit 5074878 was originally for wx, glut and pyglet are based on the wx version and came into existence after commit 5074878.

Matthias BUSSONNIER - - Load All Authors

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             syspathcontext.py
        
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             / IPython / utils / syspathcontext.py
          
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      # encoding: utf-8

      """

      Context managers for adding things to sys.path temporarily.

      Authors:

      * Brian Granger

      """

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

      #  Copyright (C) 2008-2011  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

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

      import sys

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

      # Code

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

      class appended_to_syspath(object):

          """A context for appending a directory to sys.path for a second."""

          def __init__(self, dir):

              self.dir = dir

          def __enter__(self):

              if self.dir not in sys.path:

                  sys.path.append(self.dir)

                  self.added = True

              else:

                  self.added = False

          def __exit__(self, type, value, traceback):

              if self.added:

                  try:

                      sys.path.remove(self.dir)

                  except ValueError:

                      pass

              # Returning False causes any exceptions to be re-raised.

              return False

      class prepended_to_syspath(object):

          """A context for prepending a directory to sys.path for a second."""

          def __init__(self, dir):

              self.dir = dir

          def __enter__(self):

              if self.dir not in sys.path:

                  sys.path.insert(0,self.dir)

                  self.added = True

              else:

                  self.added = False

          def __exit__(self, type, value, traceback):

              if self.added:

                  try:

                      sys.path.remove(self.dir)

                  except ValueError:

                      pass

              # Returning False causes any exceptions to be re-raised.

              return False

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				# encoding: utf-8
				"""
				Context managers for adding things to sys.path temporarily.

				Authors:

				* Brian Granger
				"""

				#-----------------------------------------------------------------------------
				# Copyright (C) 2008-2011 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
				#-----------------------------------------------------------------------------

				import sys

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

				class appended_to_syspath(object):
				"""A context for appending a directory to sys.path for a second."""

				def __init__(self, dir):
				self.dir = dir

				def __enter__(self):
				if self.dir not in sys.path:
				sys.path.append(self.dir)
				self.added = True
				else:
				self.added = False

				def __exit__(self, type, value, traceback):
				if self.added:
				try:
				sys.path.remove(self.dir)
				except ValueError:
				pass
				# Returning False causes any exceptions to be re-raised.
				return False

				class prepended_to_syspath(object):
				"""A context for prepending a directory to sys.path for a second."""

				def __init__(self, dir):
				self.dir = dir

				def __enter__(self):
				if self.dir not in sys.path:
				sys.path.insert(0,self.dir)
				self.added = True
				else:
				self.added = False

				def __exit__(self, type, value, traceback):
				if self.added:
				try:
				sys.path.remove(self.dir)
				except ValueError:
				pass
				# Returning False causes any exceptions to be re-raised.
				return False