Pasted

import bpy
from math import pi
from math import radians
from random import randrange
 
CurrentThingy = 0
 
for i in bpy.context.selected_objects:
    bpy.context.scene.objects.active = i
    r = randrange(1, 4)
    bpy.ops.transform.rotate(value=(r*90)*(pi/180), axis=(1, 0, 0))
    bpy.ops.transform.rotate(value=(r*90)*(pi/180), axis=(0, 1, 0))
    bpy.ops.transform.rotate(value=radians(90), axis=(0, 0, 1))