Doesn't work in post 2.8 versions of blender because of property annotation

[martyfouts]

Blender now requires that properties be annotations rather than assignments when they are initialized, meaning that anywhere there is a 'Foo = BARProperty(...)' statement the '=' has to change to a ':'. The symptom of this is that trying to use the addon produces

line 200, in execute seededRandomAngle = (self.rotation_angle_step * (random.Random(self.rotation_seed + obj_id).randint(1, 90))) % math.radians(360)

type error: unsupported operand types for +: '_PropertyDeferred' and 'int'

[Rudd-O]

Got bit by the same bug. Why hasn't this been fixed?

[16RoebuW]

Fixed it following Marty's advice and made a pull request, fork here: https://github.com/16RoebuW/blender-stacking-tool. I'm new to GitHub so if I need to credit anyone in a specific place please let me know, but the code works.