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A Tree Widget using jsTree

Project description



from ipyselect2 import Select2
import ipywidgets as widgets

s1 = Select2(options=['a', 'b'], width='200px')
s2 = Select2(options=['x', 'y'], width='200px', multiple='multiple', lazy=True)
s2.layout.height = '60px'
def values_change(change):
  with output:
s1.observe(values_change, 'value')
s2.observe(values_change, 'values')
output = widgets.Output()
tab = widgets.Tab()
tab.children = [s1, s2]
def tab_change(x):
  if x['new']: s2.lazy = False
tab.observe(tab_change, 'selected_index')
tab.set_title(0, 'single select')
tab.set_title(1, 'multiple select')
display(tab, output)


A jupyter widget using select2

With pip:

pip install ipyselect2

To make it work for Jupyter lab:

jupyter labextension install @jupyter-widgets/jupyterlab-manager
jupyter labextension install ipyselect2

If you have notebook 5.2 or below, you also need to execute:

jupyter nbextension enable --py --sys-prefix ipyselect2

For a development installation (requires npm),

cd /opt
git clone
cd ipyselect2
pip install -e .
jupyter nbextension install --py --symlink --sys-prefix ipyselect2
jupyter nbextension enable --py --sys-prefix ipyselect2
jupyter labextension link js

For Jupyter lab development, you may want to start Jupyter lab with jupyter lab –watch so it instantly picks up changes.

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