Re: [jupyter] Auto-running notebook and hooking an event on completion

[MinRK]

The kernel should know that it has outstanding requests, so you ought to be able to query that, to determine whether.

There isn’t a public API for this information, but this should work for now:

finished = (Object.keys(IPython.notebook.kernel._msg_callbacks).length == 0);

If you check that value when idle events arrive, it should tell you when the notebook is actually done or not.

-MinRK

​

On Thu, Oct 8, 2015 at 9:18 PM, Graham Wheeler <gr...@geekraver.com> wrote:

Hi all

I'm trying to have a custom.js that will automatically run a notebook when it gets opened or reloaded, and then hook an event handler when done.

I'm trying this to start:

require(['base/js/namespace', 'base/js/events', 'base/js/dialog', 'base/js/utils', 'base/js/security'], function() {

  $([IPython.events]).on('kernel_ready.Kernel kernel_created.Session notebook_loaded.Notebook', run_notebook);

});

That seems to work okay.

Getting completion event handling seems more tricky. I have:

function run_notebook() {

  var pageClass = document.body.className;

  if (pageClass.indexOf('notebook_app') >= 0) {

    IPython.notebook.clear_all_output();

    IPython.notebook.execute_all_cells();

   // My problem is here - how to tell when done.

   // One attempt - this seems to run over and over

    $([IPython.events]).on('kernel_idle.Kernel', function() {

        checkIfDone();

    });

    // Another attempt - this doesn't seem to work at all

    setTimeout(5000, function() {

      checkIfDone();

    });

  }

}

function checkIfDone() {

  if (IPython.notebook.kernel_busy) {

    setTimeout(5000, function() {

      checkIfDone();

    });

  } else {

    console.log('Finished execution');

  }

}

Is there a better way? Some other event to hook into?

Thanks!

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[Pouya Ghadimi Karahrodi]

Is this resolved ? I am trying to automate a notebook run and conversion to pdf.

The missing step is the save after the notebook run completion.

I am managing this through commands:

 %run ./notebook.ipynb --inputParameters

and then 

subprocess.call(["jupyter", "nbconvert" ,"--to=pdf","--template=template.tplx", "notebook.ipynb"]) 

Having this setup it misses the save and doesn't have the updated fields.

Any suggestion to fix this ?

[Thomas Kluyver]

You could use the --execute option when you call nbconvert.

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