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

Backport PR : Let IPython.lib.guisupport detect terminal-integrated event loops...

Backport PR : Let IPython.lib.guisupport detect terminal-integrated event loops Closes gh-9974 This is a bit more invasive than most backported changes, but it fixes a regression in IPython 5. My thinking: - The `guisupport` APIs that worked before should continue working until/unless we deprecate them. - There should be a common way to check if an event loop is already running in both the terminal and an IPython kernel. - It should be possible to check for any event loop, not just Qt and Wx (which `guisupport` has checks for). My plan is to make a public attribute `shell.active_eventloop`, which is either None or a string naming the event loop which IPython will run when waiting for input. E.g. `qt` or `gtk3`. (Todo: should we also expose the event loop object in cases where there is one? Not sure if anything useful can be done with it). This PR adds that attribute for terminal IPython; if we agree on it I'll make a separate PR for ipykernel. The functions in guisupport then become a convenient shortcut for checking this, and we can decide whether to deprecate them in favour or something more uniform, or add similar convenience functions for other common event loops. Signed-off-by: Thomas Kluyver <thomas@kluyver.me.uk>

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        Brian Granger
    
Continuing a massive refactor of everything.

              r2205
            
      # encoding: utf-8

        MinRK
    
add IPython.get_ipython...

              r10579
            
      """Simple function to call to get the current InteractiveShell instance

        Fernando Perez
    
Remove 2.3 compatibility, minor cleanups.

              r1414
            
      """

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

        MinRK
    
add IPython.get_ipython...

              r10579
            
      #  Copyright (C) 2013  The IPython Development Team

        Brian Granger
    
Continuing a massive refactor of everything.

              r2205
            
      #

      #  Distributed under the terms of the BSD License.  The full license is in

      #  the file COPYING, distributed as part of this software.

        Fernando Perez
    
Remove 2.3 compatibility, minor cleanups.

              r1414
            
      #-----------------------------------------------------------------------------

        ville
    
initialization (no svn history)

              r988
            
        Brian Granger
    
Continuing a massive refactor of everything.

              r2205
            
      #-----------------------------------------------------------------------------

      # Classes and functions

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

        Robert Kern
    
ENH: Allow non-dict namespaces. This involves a change in the ipapi for setting user namespaces.

              r1419
            
        Brian Granger
    
ipapi.get now returns None if there are no InteractiveShells running....

              r2292
            
        MinRK
    
add IPython.get_ipython...

              r10579
            
      def get_ipython():

          """Get the global InteractiveShell instance.

          Returns None if no InteractiveShell instance is registered.

          """

        Brian Granger
    
Fixing two minor bugs....

              r2816
            
          from IPython.core.interactiveshell import InteractiveShell

        MinRK
    
add IPython.get_ipython...

              r10579
            
          if InteractiveShell.initialized():

              return InteractiveShell.instance()

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Brian Granger Continuing a massive refactor of everything.	r2205	# encoding: utf-8
MinRK add IPython.get_ipython...	r10579	"""Simple function to call to get the current InteractiveShell instance
Fernando Perez Remove 2.3 compatibility, minor cleanups.	r1414	"""

		#-----------------------------------------------------------------------------
MinRK add IPython.get_ipython...	r10579	# Copyright (C) 2013 The IPython Development Team
Brian Granger Continuing a massive refactor of everything.	r2205	#
		# Distributed under the terms of the BSD License. The full license is in
		# the file COPYING, distributed as part of this software.
Fernando Perez Remove 2.3 compatibility, minor cleanups.	r1414	#-----------------------------------------------------------------------------
ville initialization (no svn history)	r988
Brian Granger Continuing a massive refactor of everything.	r2205	#-----------------------------------------------------------------------------
		# Classes and functions
		#-----------------------------------------------------------------------------
Robert Kern ENH: Allow non-dict namespaces. This involves a change in the ipapi for setting user namespaces.	r1419
Brian Granger ipapi.get now returns None if there are no InteractiveShells running....	r2292
MinRK add IPython.get_ipython...	r10579	def get_ipython():
		"""Get the global InteractiveShell instance.

		Returns None if no InteractiveShell instance is registered.
		"""
Brian Granger Fixing two minor bugs....	r2816	from IPython.core.interactiveshell import InteractiveShell
MinRK add IPython.get_ipython...	r10579	if InteractiveShell.initialized():
		return InteractiveShell.instance()