ipywidget not supported ?

[abdelwahed]

The following doesn't work in Google Colab

from ipywidgets import interact

def f(x):
  return x

interact(f, x=10)

[ghost]

I tried this fix with !jupyter nbextension enable --py --sys-prefix widgetsnbextension, after install widgetsnbextension and I always get this error "ImportError: No module named widgetsnbextension"

[blois]

Consolidating into #60