Beginner here: I know how to display a text string but don't want a fixed value but would like it to display a time varying output from my python script which executes with scripted time.sleep() timers. (I am not using the timeline).
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time.sleepin blender, rather use a modal timer operator. There is one in the scripting templates. See this Q / A Or given the application is designed to animate, use the timeline. $\endgroup$ – batFINGER Mar 24 '18 at 11:51