Python Matplotlib Slider is drawn but doesnt move or update

Question

I am trying to draw a scatter plot with a point that moves based on a parameter adjusted by a slider. I need the parameter to be the position in a list of the coordinates. I hav

Answer 1

You have to keep a reference to the Slider object around or it (and it's call backs) get garbage collected. See long discussion at https://github.com/matplotlib/matplotlib/issues/3105.

The documentation on this has been clarified for 1.4.