I am trying to use ipywidgets with Google Colaboratory, and (as with plotly) the simplest example from the docs does not work. The code below shows a slider in a local notebook but only returns 10 and <function __main__.f> in a Google notebook.
!pip install ipywidgets
from ipywidgets import interact
def f(x):
return x
interact(f, x=10)
Is there another custom initialization that I could use to enable the widgets?
Update 2: core ipywidgets now work in Colab, as do many custom widgets! In particular, the base, controls, FileUpload, Image, and output widgets all work in colab. See https://github.com/googlecolab/colabtools/issues/498 for more details.
(Tweaked original answer): ipywidgets don't Just Work with Colab: we have a different security model, wherein each output is in its own iframe (with a different origin than the main Colab page). This prevents ipywidgets from working without changes on the Colab side.
!pip install ipywidgets
# this will allow the notebook to reload/refresh automatically within the runtime
%reload_ext autoreload
%autoreload 2
from ipywidgets import interact
def f(x):
return x
interact(f, x=10)
I think now Ipywidgets is working with Google Collaboratory. I tested some decorators and it ran smoothly.
Your code has resulted in:
As of 2021-12 the ipywidgets (widgets) work perfectly in Colab. Well, maybe not 100% of them but a pretty decent amount.
All you need is to import them (in whatever way you prefer, 2 examples below)
import ipywidgets as widgets
from ipywidgets import interact, interactive, fixed
And use (simple example)
widgets.Select(
options=['Linux', 'Windows', 'macOS'],
value='macOS',
# rows=10,
description='OS:',
disabled=False
)
You have fantastic documentation here https://ipywidgets.readthedocs.io
ipywidgets are kinda-supported in colab now; a notable exception is ipywidgets.Image. See https://github.com/googlecolab/colabtools/issues/587.
