Dear Malitha,
Dear RDKitters,

thanks a lot for your investigations!

Indeed, this issue seems somehow browser-related; please check the attachment 
which shows the output in a different browser (Firefox@openSUSE vs. IE11@Win7 
from my previous mail).

I’m now able to find a button-like widget but no structure…


This presumably looks like off-topic for this mailing list. However, if anyone 
can point into the right direction: that would be highly appreciated.


Cheers,
Paul




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Von: Malitha Kabir [mailto:malitha12...@gmail.com]
Gesendet: Dienstag, 20. Juni 2017 10:58
An: Paul Czodrowski <paul.czodrow...@merckgroup.com>
Cc: rdkit-discuss@lists.sourceforge.net
Betreff: Re: [Rdkit-discuss] ipywidgets & py3Dmol

Dear Paul,

Kindly consider a few pieces of information provided below.

For your 2nd question:

Widgets are rendered in web browsers. So, in my sense, Python 2.7.13 instead of 
Python 3.5.3 should not cause problem with widget rendering. Python 2.7.13 
should work. My conda install uses Python 2.7.12 and it is working well with 
the notebook you attached.

For your 1st question:

The following stackoverflow discussion might help.
https://stackoverflow.com/questions/36351109/ipython-notebook-ipywidgets-does-not-show

Kindly consider the readme of ipywidgets. 
https://github.com/jupyter-widgets/ipywidgets/blob/master/README.md As per 
their suggestions, if you install ipywidgets using pip then you need to enable 
widgetsnbextension (widgets notebook extension) manually.

Running the following line from shell will do that for you.

jupyter nbextension enable --py --sys-prefix widgetsnbextension
Kindly try out the following code. It should show a slider in your notebook if 
everything is fine.

from __future__ import print_function
import ipywidgets as widgets

slider = widgets.SelectionSlider(
    options=[1,2,3],
    value=1
)
slider

Probably trying with different web browser may help (I am not sure though)

Best Regards,
Malitha



On Tue, Jun 20, 2017 at 1:56 PM, Paul Czodrowski 
<paul.czodrow...@merckgroup.com<mailto:paul.czodrow...@merckgroup.com>> wrote:
Dear Axel,

thanks a lot for this very helpful information!


The only difference I could figure out:
Python 2.7.13 instead of Python 3.5.3

@RDKitters:
Can this really cause such a different behavior?

Cheers,
Paul

P.S.: I’m aware of http://www.python3statement.org/ ;)


Von: Axel Pahl [mailto:axelp...@gmx.de<mailto:axelp...@gmx.de>]
Gesendet: Dienstag, 20. Juni 2017 09:35
An: 
rdkit-discuss@lists.sourceforge.net<mailto:rdkit-discuss@lists.sourceforge.net>
Betreff: Re: [Rdkit-discuss] ipywidgets & py3Dmol

Hi Paul,

I just tried the example Notebook that you provided and it runs just as in 
Greg's blog post, i.e. with the interactive slider (see attached screenshot).
This is the configuration I used (in Anaconda):

python                    3.5.3
rdkit                     2017.03.2
notebook                  5.0.0
ipywidgets                6.0.0
py3Dmol                   0.6.3

Kind regards,
Axel
On 20.06.2017 07:48, Paul Czodrowski wrote:
Dear RDKitters,

When trying to re-run Greg’s wonderful blog entry about the py3Dmol integration 
(https://rdkit.blogspot.de/2016/07/using-ipywidgets-and-py3dmol-to-browse.html 
), I’m getting a different behavior (check the attachment with a screenshot and 
the jupyter notebook).

Any help would be appreciated.

Cheers,
Paul




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