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Johan Mabille

@JohanMabille

in this case yes

Sylvain Corlay

@SylvainCorlay

@/all Let’s look back at what we have accomplished in 2021!

https://twitter.com/QuantStack/status/1472234833451663364

Patrick Bos

@egpbos

nice, i didn't know about voila-gridstack, that looks really useful

Patrick Bos

@egpbos

what's the status of quetz btw? I see there's now a front-end that you can download tarred packages from... is it already possible to use mamba.pm as my main package server?

we've recently been thinking about this (at the NL eScience Center), because of the changes in pricing policy at anaconda, which could impact some of our audience (we mostly target scientists at public institutions, but don't want to exclude scientists at companies just because our distribution channel now costs them)

Patrick Bos

@egpbos

@btel do i understand correctly that it is not yet possible to persist somehow the manually made grid layout in voila-gridstack?

Gayan Chinthaka

@ndgayan

VOILA notebooks giving "WARNING | Notebook Test.ipynb is not trusted." warning. Do you know how to fix this issue?

Robert Seidl

@seidlr

Hi, I have a question related to loading additional javascript in voila. I need to include a js library to draw sparklines in a panel tabulator widget in voila. I managed to get it to run in jupyter lab but it is not working with voila.
The library used is actually a jQuery extension and this seems to make it a bit tricky to load.
Here is a repo with binder links to lab and voila
https://github.com/seidlr/voila-panel-tabulator-sparklines
and the tipps i got from the panel guys: https://discourse.holoviz.org/t/add-sparkline-formatters-to-tabulator/3197/3
If you have an idea how to get this to run, please let me know. Thanks.

Benjamin Bertrand

@beenje

https://twitter.com/QuantStack/status/1472234833451663364

Nice article! Congrats for all the work.
I saw there is a new frontend for Quetz. I guess it's this repo https://github.com/mamba-org/quetz-frontend? Is it still WIP or would you recommend trying to use it?
The article also mentions a plugin to convert PyPI wheels to conda packages on the fly. I'd be interested in that. Where can I find that plugin?

cmartinotti

@cmartinotti

hello guys, I am baffled. I have coded a pretty complex jupyer notebook involving various interconnected widgets and I thought I well understood how ipywidget worked. I might have found a bug though as today I am trying to simply run the following code:

out=widgets.Output()
dfa=pd.DataFrame({'x':[1,2,3],'y':[1,2,3]})


with out:
    out.clear_output(wait=True)
    print('ciao')
    fig=px.scatter(dfa,x='x',y='y', width=800, height=400 )
    fig.show()

out

And the output cell is displaying nothing. I am pretty sure that it should display the plotly express plot in fig. Instead it only display the 'ciao' being printed. The really weird thing is that I am using the same exact kernel with very similar code for my other complex applications involving multiple boxes and observes codes and everything is working fine. I don't understand what's wrong.

martinRenou

@martinRenou

Hey @cmartinotti, I tried your example in JupyterLab, and it seems to work fine:

though plotly seems to fail in my classic Jupyter Notebook setup for some reason

2 replies

just

fig=px.scatter(dfa,x='x',y='y', width=800, height=400 )
fig.show()

shows an empty area

it seems to be due to a 404 error on the plotly JS code

require.js?v=d37b48bb2137faa0ab98157e240c084dd5b1b5e74911723aa1d1f04c928c2a03dedf922d049e4815f7e5a369faa2e6b6a1000aae958b7953b5cc60411154f593:1958 GET http://localhost:8888/static/plotly.js?v=20220106094745 net::ERR_ABORTED 404 (Not Found)

DougRzz

@DougRzz

Hi @cmartinotti . I tried your code and I had the same issue as you in Jupyter Classic. I fixed it with.

    fig.show(renderer='notebook')

DougRzz

@DougRzz

Hi all. I'm a long term user and fan of Voila. Thank you for the great work.
I tried Voila v0.3 on Windows 10 as I would like to use the preheated kernels. I got preheated kernels working nicely on my local machine with big speedups. Its a super useful feature!!! However, when I try to access the Voila instance through another machine on the same network it doesn't connect. Normally I just replace localhost in the url address with the domain address or ip number of the host machine. When I swap localhost with the ip address it doesn't connect on either the local or remote machines. When I switched back to Voila v0.2.x, it all worked as expected. Any ideas?

Nicolas M. Thiéry

@nthiery

Hello! I am using micromamba to build a docker image from an environment.yml with a few conda dependencies. The build feels slow (though I haven't done my homework yet to do actual timings). Is the solver in micromamba the same as in mamba? Or for a complex image like this, should I do it in two steps: install mamba with micro mamba, and then install the rest of the environment with mamba?

Wolf Vollprecht

@wolfv

the solver is identical

are you using the micromamba docker image?

sometimes there are weird corner cases for solves, specifically when mixing channels like defaults & conda-forge

@beenje yep, we're picking up work on teh quetz-frontend just now

it's in a semi-finished state :)

9 replies

Duc Trung Le

@trungleduc

@DougRzz we changed the public IP policy of Voila since 0.3.0 (https://github.com/voila-dashboards/voila/issues/1047#issuecomment-997297250)

3 replies

Nicolas M. Thiéry

@nthiery

Ok, thanks for the feedback. Yes indeed, using the micromamba docker image.

With -vvv, it indeed shows lots of conflicts which probably make for that many corner cases. Unless I missed something, I am using conda-forge only. Just for the record,here is the environment: https://gitlab.dsi.universite-paris-saclay.fr/L1InfoInitiationScienceDonnees/ComputerLab/-/blob/master/binder/environment.yml

Wolf Vollprecht

@wolfv

hmm, yeah, I just tried and indeed it's pretty slow

it's much faster when you constrain the python version

I just added python=3.9 and then it's as fast as always

3.10 also works

Nicolas M. Thiéry

@nthiery

Ah, ah, thanks for the tip! Now it indeed runs in a reasonable time. Great, problem solved.

Something to keep in mind for Candyce: proposing to pin a Python version in the package selector or something similar.

cmartinotti

@cmartinotti

Hi @cmartinotti . I tried your code and I had the same issue as you in Jupyter Classic. I fixed it with.
    fig.show(renderer='notebook')

I am using Jupyter notebook, and even adding this line it doesn't work.

cmartinotti

@cmartinotti

Also for me it doesn't even work in JupyterLab

cmartinotti

@cmartinotti

UPDATE: Running more test using the old code (that works) and comparing it with the code that i linked previously I noticed that if I stack two cells one with the form :

#CELL 1
import plotly.express as px
import pandas as pd
import ipywidgets as widgets

out=widgets.Output()
dfa=pd.DataFrame({'x':[1,2,3],'y':[1,2,3]})


with out:
    out.clear_output(wait=True)
    print('ciao')
    fig=px.scatter(dfa,x='x',y='y', width=800, height=400 )
    fig.show()

out

and one with the form :

#CELL 2 
with out:
    out.clear_output(wait=True)
    print('ciao')
    fig=px.scatter(dfa,x='x',y='y', width=800, height=400 )
    fig.show()

out

A weird thing happens. If I run CELL1 i get an empty output, then I run CELL2 and i still get an empty output, but the output from CELL1 now shows the plot from CELL2.

ndbecker

@nbecker

xtensor roadmap? Is there any roadmap of future plans for xtensor? Or is it essentially finished already?

Johan Mabille

@JohanMabille

@nbecker it is not finished at all, we are swamped with other projects and lack a bit of funding for xtensor

next steps are the refactoring of the views to fix performance issues, the refactoring of the reducers

we would like to make progress on the xtensor-sparse module too

ndbecker

@nbecker

ok, so performance improvements. As far as features, basically complete, except for sparse?

Mario Emmenlauer

@emmenlau

@JohanMabille I very much like this roadmap! Happy new year btw...

Sylvain Corlay

@SylvainCorlay

Einsum is a big one.

Johan Mabille

@JohanMabille

@nbecker there's also the einsum as said Sylvain

we don't plan to add other features for now, but we are open to requests

@JohanMabille I very much like this roadmap! Happy new year btw...

thanks :) Happy new year too!

ndbecker

@nbecker

thanks

joseberlines

@joseberlines

Hi there, I am using voila to render a notebook in jupyterHub environement. I would like to create a kind of "Launcher" opening several tabs in chrome by clicking buttons. I have this code:

import ipyvuetify as vue
from ipywidgets import Output
from IPython.display import Javascript

b = vue.Btn(class_='mx-2 light-blue darken-1', color='primary',children=['open newspapers'])
out=Output()

def open_pages(widget, event, data):
    with out:
        print('clicked')
        display(Javascript(f'window.open("https://www.lemonde.fr");'))
        print('should have opened 1')
        display(Javascript(f'window.open("https://www.nytimes.com");'))
        print('should have opened 2')

b.on_event('click', open_pages)

display(vue.Layout(children=[b,out]))

only one tab is open, the first one, despite of the fact that the three print statements run and no error is given back.
Any idea how to solve this issue or where can be the error?

martinRenou

@martinRenou

Hey :)

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