I'd like to be able to make a slider widget without the knob that users can click and drag -- that is, I want the user to simply click somewhere on an empty slider and *then* have the knob appear where clicked. Is this possible with either Tkinter or wxPython? (Or another toolkit?)
Essentially I'm looking for a person's rating of a given object (i.e., how bright is it?), so they should only have to click once. I know that radio buttons can do the job, and that's what I'm using currently, but they seem rather cumbersome and less suggestive of the truly scalar nature of the object's quality (brightness, complexity, etc.).