Re: Finding the subcommand names

> FWIW, IPython/Jupyter were installed via MacPorts.

This seems the most important bit. Jupyter doesn't add `-X.Y` to its
scripts, so it's probably macports doing this (I don't know how/where they
do this). When you type `jupyter notebook`, that's really just a synonym
for `jupyter-notebook`. MacPorts should really be providing this
executable. If they aren't they may need to ship a patch to Jupyter's
command dispatch to add the version suffix.

If there is a patch to be made, it would be in jupyter_core.command, which
implements the subcommand dispatch. We could conceivably detect a suffix on
the executable and add it to how subcommands are found.

-MinRK


On Fri, Feb 12, 2016 at 10:14 AM, Akim Demaille <[email protected]> wrote:

> Hi,
>
> The most recent version of IPython complains when I run `ipython notebook`:
>
> > $ ipython notebook
> > [TerminalIPythonApp] WARNING | Subcommand `ipython notebook` is
> deprecated and will be removed in future versions.
> > [TerminalIPythonApp] WARNING | You likely want to use `jupyter
> notebook`... continue in 5 sec. Press Ctrl-C to quit now.
>
> So I obey, but it fails:
>
> > $ jupyter-3.4 notebook
> > jupyter: 'notebook' is not a Jupiter command
>
>
> What?  What are the existing commands?
>
> > $ jupyter-3.4 --help
> > usage: jupyter-3.4 [-h] [--version] [--config-dir] [--data-dir]
> >                    [--runtime-dir] [--paths] [--json]
> >                    [subcommand]
> >
> > Jupyter: Interactive Computing
> >
> > positional arguments:
> >   subcommand     the subcommand to launch
> >
> > optional arguments:
> >   -h, --help     show this help message and exit
> >   --version      show the jupyter command's version and exit
> >   --config-dir   show Jupyter config dir
> >   --data-dir     show Jupyter data dir
> >   --runtime-dir  show Jupyter runtime dir
> >   --paths        show all Jupyter paths. Add --json for machine-readable
> >                  format.
> >   --json         output paths as machine-readable json
> >
> > Available subcommands: 3.4 kernelspec-3.4 migrate-3.4 nbconvert-3.4
> > nbextension-3.4 notebook-3.4 trust-3.4
>
> Huh, I need that -3.4 extension :(
>
> > $ jupyter-3.4 notebook-3.4
> > [I 10:09:00.941 NotebookApp] The port 8888 is already in use, trying
> another random port.
> > [I 10:09:00.942 NotebookApp] The port 8889 is already in use, trying
> another random port.
>
>
> But that `ipython notebook` is inside a shell script that I
> provide my users with.  So I need something portable.  Hence
> the question is: what is the advertised way to know how the
> `notebook` command is to be invoked?  Yeah, I can grep and
> sed etc. the help message, but that’s really messy.  Besides,
> how do I know what conventions are used on other platforms/distros?
>
> That `notebook-3.4` instead of `notebook` is really an additional
> complexity I would have liked not to have.
>
> FWIW, IPython/Jupyter were installed via MacPorts.
>
> Cheers!
> _______________________________________________
> IPython-dev mailing list
> [email protected]
> https://mail.scipy.org/mailman/listinfo/ipython-dev
>

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