upstream/ipython Files · docs/examples/core/example-embed-short.py

Backport PR : ipcluster broken with any batch (PBS/LSF/SGE)...

Backport PR : ipcluster broken with any batch (PBS/LSF/SGE) I have setup ipcluster_config.py to start with LSF: ``` c.IPClusterStart.controller_launcher_class = 'LSF' c.IPClusterStart.engine_launcher_class = 'LSF' ``` But the ipcluster command fails to start the engines: ``` ipcluster start --profile=lsf -n 10 ``` The problem is fixed if I add quotes to the launch command string ```cmd``` in ```launcher.py```. ``` diff --git a/IPython/parallel/apps/launcher.py b/IPython/parallel/apps/launcher.py index e752d2a..6035303 100644 --- a/IPython/parallel/apps/launcher.py +++ b/IPython/parallel/apps/launcher.py @@ -73,7 +73,7 @@ WINDOWS = os.name == 'nt' # Paths to the kernel apps #----------------------------------------------------------------------------- -cmd = "from IPython.parallel.apps.%s import launch_new_instance; launch_new_instance()" +cmd = "\"from IPython.parallel.apps.%s import launch_new_instance; launch_new_instance()\"" ipcluster_cmd_argv = [sys.executable, "-c", cmd % "ipclusterapp"] ```

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             example-embed-short.py
        
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      """Quick code snippets for embedding IPython into other programs.

      See example-embed.py for full details, this file has the bare minimum code for

      cut and paste use once you understand how to use the system."""

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

      # This code loads IPython but modifies a few things if it detects it's running

      # embedded in another IPython session (helps avoid confusion)

      try:

          get_ipython

      except NameError:

          banner=exit_msg=''

      else:

          banner = '*** Nested interpreter ***'

          exit_msg = '*** Back in main IPython ***'

      # First import the embed function

      from IPython.frontend.terminal.embed import InteractiveShellEmbed

      # Now create the IPython shell instance. Put ipshell() anywhere in your code

      # where you want it to open.

      ipshell = InteractiveShellEmbed(banner1=banner, exit_msg=exit_msg)

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

      # This code will load an embeddable IPython shell always with no changes for

      # nested embededings.

      from IPython import embed

      # Now embed() will open IPython anywhere in the code.

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

      # This code loads an embeddable shell only if NOT running inside

      # IPython. Inside IPython, the embeddable shell variable ipshell is just a

      # dummy function.

      try:

          get_ipython

      except NameError:

          from IPython.frontend.terminal.embed import InteractiveShellEmbed

          ipshell = InteractiveShellEmbed()

          # Now ipshell() will open IPython anywhere in the code

      else:

          # Define a dummy ipshell() so the same code doesn't crash inside an

          # interactive IPython

          def ipshell(): pass

      #******************* End of file <example-embed-short.py> ********************

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				"""Quick code snippets for embedding IPython into other programs.

				See example-embed.py for full details, this file has the bare minimum code for
				cut and paste use once you understand how to use the system."""

				#---------------------------------------------------------------------------
				# This code loads IPython but modifies a few things if it detects it's running
				# embedded in another IPython session (helps avoid confusion)

				try:
				get_ipython
				except NameError:
				banner=exit_msg=''
				else:
				banner = '* Nested interpreter *'
				exit_msg = '* Back in main IPython *'

				# First import the embed function
				from IPython.frontend.terminal.embed import InteractiveShellEmbed
				# Now create the IPython shell instance. Put ipshell() anywhere in your code
				# where you want it to open.
				ipshell = InteractiveShellEmbed(banner1=banner, exit_msg=exit_msg)

				#---------------------------------------------------------------------------
				# This code will load an embeddable IPython shell always with no changes for
				# nested embededings.

				from IPython import embed
				# Now embed() will open IPython anywhere in the code.

				#---------------------------------------------------------------------------
				# This code loads an embeddable shell only if NOT running inside
				# IPython. Inside IPython, the embeddable shell variable ipshell is just a
				# dummy function.

				try:
				get_ipython
				except NameError:
				from IPython.frontend.terminal.embed import InteractiveShellEmbed
				ipshell = InteractiveShellEmbed()
				# Now ipshell() will open IPython anywhere in the code
				else:
				# Define a dummy ipshell() so the same code doesn't crash inside an
				# interactive IPython
				def ipshell(): pass

				#***************** End of file <example-embed-short.py> ******************