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

Start webbrowser in a thread. Prevents lockup with Chrome....

Start webbrowser in a thread. Prevents lockup with Chrome. If a user has Chrome set as their default browser (system-wide or via the `BROWSER` environment variable), opening the notebook hangs because the chrome call doesn't return immediately. This solves the issue by opening the browser in a thread. Note that there remains an issue where killing the notebook will kill Chrome if the Chrome session was started by us. I haven't found a way to work around that despite attempts by making the webbrowser.open() call in a subprocess.

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')