in src/SentinelUtilities/SentinelWidgets/widget_view_helper.py [0:0]
def set_env(self, env_dir, var):
""" Set notebook environmental variable """
val = None
if var in env_dir.keys():
val = env_dir[var]
self.variable = var
user_input = widgets.Text(value=val, description=var + ': ')
user_input.observe(self.save_env, 'value')
display(user_input)