I need a python software package that collects the x & y coordinates of the pen movements on my Wacom tablet. Is there anything out there that gets the job done? I'm using Mac OS X Mojave.
Since the Wacom tablet is treated as an input device, just like the mouse, about every GUI package including wxPython can give you this information. You could also look at PyGame for the mouse package.
Screenshot of wxPython Demo showing mouse coordinates, actually being operated with a Watcom tablet: