Scene Creation python code

import maya.cmds as cmds
import random

#creating a chair
class create_scene:
    def __init__(self,tx,ty,tz):
            class create_table:

                def __init__(self,tx,ty,tz):
                    self.top = cmds.polyCube(w=4,h=0.275,d=3)
                    self.leg1 = self.create_leg(1.6, 0, 1.3)
                    self.leg2 = self.create_leg(1.6,0,-1.3)
                    self.leg3 = self.create_leg(-1.6,0,1.3)
                    self.leg4 = self.create_leg(-1.6,0,-1.3)

                    table_name = cmds.group(self.top,self.leg1,self.leg2,self.leg3,self.leg4,name="table")
                    cmds.select(clear=True)

                    cmds.setAttr("{0}.translate".format(table_name),tx,ty,tz)

                def create_leg(self,tx,ty,tz):
                    leg = cmds.polyCube()
                    cmds.setAttr("{0}.translate".format(leg[0]),tx,-1,tz)
                    cmds.setAttr("{0}.scale".format(leg[0]),0.275,2,0.275)
                    return leg[0]

            #creating a stool next to the table
            class create_stool:

                def __init__(self,tx,ty,tz):
                    self.top = cmds.polyCylinder(r=1,h=0.2)
                    self.leg = self.create_leg(0,0,0)
                    self.base = self.create_base(0,0,0)

                    stool_name = cmds.group(self.top,self.leg,self.base,name="stool")
                    cmds.setAttr("{0}.translate".format(stool_name),tx,ty,tz)

                def create_leg(self,tx,ty,tz):
                    leg = cmds.polyCylinder()
                    cmds.setAttr("{0}.translate".format(leg[0]),tx,-0.7,tz)
                    cmds.setAttr("{0}.scale".format(leg[0]),0.1,0.6,0.1)
                    return leg[0]

                def create_base(self,tx,ty,tz):
                    base = cmds.polyCylinder()
                    cmds.setAttr("{0}.translate".format(base[0]),tx,-1.4,tz)
                    cmds.setAttr("{0}.scale".format(base[0]),0.7,0.1,0.7)
                    return base[0]

            table1 = create_table(0,2,0)
            stool1 = create_stool(3.5,1.5,2)
            stool2 = create_stool(3.5,1.5,-2)
            stool3 = create_stool(-3.5,1.5,2)
            stool4 = create_stool(-3.5,1.5,-2)


for i in range (0,10):
    scene1 = create_scene(0,0,0)
    cmds.select (all = True)
    cmds.group (name = "scene")
    cmds.setAttr('scene.translateX', random.randint(-20,20))
    cmds.setAttr('scene.translateZ', random.randint(-20,20))
    i+1