cannot import processing or turtle (possibly issue #3 redux)

[sawula]

• skulpt_python kernel seemed to install successfully through pip install --upgrade skulpt_python as revised at close of issue Installation problem - version requirement #3
• tried to work through basic examples in Jupyter notebook using Skulpt Python kernel. import turtle triggers the error ExternalError: TypeError: target is null on line 1 and import processing triggers the error message ImportError: Failed to load remote module 'processing' on line 1
• then went back and tried to install by cloning skulpt_python and running python setup.py install, but that didn't make any difference

Again, I'm on:
Windows 8.1 Enterprise
Notebook server 4.1.0
Python 2.7.11
Anaconda 2.5.0 (64-bit)
I believe I already have Metakernel, and Calysto installed via pip.

Thanks again!

[dsblank]

I'll have to dig into why the notebook on jupyter.cs.brynmawr.edu works... must be some differences there. Thanks for reporting!

[sawula]

Hi, Doug.

I'm up at Jupyter days in Boston. Seems like a way around the differences
in dependencies/versions is for us to use Docker (www.docker.com). btw
Kitematic.com is GUI for Docker.

There's also www.mybinder.org, but I believe Docker is more appropriate
because I want students to make lots of versions of your working notebook.
I'm not totally clear on this.

Could that be a plan for now? I'm eager to use your Skulpt kernel. It
sounds like creating a Docker container isn't that hard.

Thanks,

ms

On Thu, Mar 10, 2016 at 9:19 PM, Doug Blank [email protected]
wrote:

I'll have to dig into why the notebook on jupyter.cs.brynmawr.edu
works... must be some differences there. Thanks for reporting!

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[dsblank]

@p5k12 Cool... wish I were there!

Yes, docker (and mybinder) are very easy to set up. I'm tying to find the version I made that notebook with...

[sawula]

I wish you were here, too. I kept scanning the room today thinking you would be!

On Mar 17, 2016, at 8:23 PM, Doug Blank [email protected] wrote:

@p5k12 Cool... wish I were there!

Yes, docker (and mybinder) are very easy to set up. I'm tying to find the version I made that notebook with...

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[dsblank]

So, this seems to work for me:

from processing import *

def setup():
    size(400,400)
    noStroke()
    smooth()
    noLoop()

def draw():
    drawCircle(200,170,6)

def drawCircle(x, radius, level):
    tt = 128.0 * level / 4.0
    fill(tt)
    ellipse(x, 200, radius*2, radius*2)
    if level > 1:
        level = level - 1
        drawCircle(x - radius / 2, radius/2, level)
        drawCircle(x + radius / 2, radius/2, level)
run()

But I am getting an error importing turtle...

[dsblank]

What is your result of this:

python3 -c "import skulpt_python; print(skulpt_python.__version__)"

[dsblank]

Oh, I see you are using Python2... maybe there is an issue there...

[dsblank]

Ah, yes... this is a Python2 issue. Looks like there may be code in the skulpt_python/kernel.py that is Python3 specific. Let me take a look...

[dsblank]

No, that wasn't it... I think it is not finding this file: http://localhost:8888/notebooks/processing/**init**.js

[dsblank]

I think I need to rebuild skulpt with the processing __init__.js in it...