#!/usr/bin/env python
# coding: utf-8

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print('hi')


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import ipywidgets as widgets
slider = widgets.FloatSlider(description='x')
text = widgets.FloatText(disabled=True, description='$x^2$')
text.disabled
def compute(*ignore):
    text.value = str(slider.value**2)
slider.observe(compute, 'value')
slider.value = 14
widgets.VBox([slider, text])


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print('voila')


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1+2


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