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multi_select = Select (title = "Select Quarters" , value = str1, options = df)

def function_to_call(attrname, old, new):
  print(multi_select.value)

text=("""<!DOCTYPE html>
<html lang="en">
   <head>
      <meta charset="utf-8">
      {{ bokeh_css }}
      {{ bokeh_js }}
   </head>
   <body>
      <style type="text/css">
         {% include 'styles.css' %}
      </style>
      {{ plot_div|indent(8) }}
      {{ plot_script|indent(8) }}
      <div>
         <h1 style="color:#8CC43F">{selectval}</h1>
      </div>
   </body>
</html>
""")

m =multi_select.on_change('value',function_to_call)
text = text.format(selectval=m)
div = Div(text=text,width=200, height=100)

curdoc().add_root(widgetbox(multi_select,div))