Having a range slider of numeric min/max/value return a string is misleading . DONT DO THAT alis fix it:
try yourself with
https://dash.plotly.com/dash-core-components/input
the callbacks args:
(None, None, None, None, None, None, None, '19.533189869227', None)
should be int/float. your weird " Important Notice re Integer vs Float" para. underlines the issues. please clean it up
it gets worse if one sets the inital value=1, but later callbacks will be ‘2’, once it is incremented!