import maya.cmds as cmds
import random

store=cmds.ls(sl=True)


def makeSceneClouds(cloudGeo, setGeoRange=100, rangeX=100, rangeY=50, rangeZ=100):

    topGroup = cmds.group(em=True, n=cloudGeo+"_Top_Cloud_Grp")

    for cld in xrange(setGeoRange):
        cloudCopy = cmds.duplicate(cloudGeo, rr=True, n=cloudGeo+"_%02d_cloud_Geo" % (cld+1))[0]

        randomX=random.randrange(-rangeX, rangeX)
        randomY=random.randrange(-rangeY, rangeY)
        randomZ=random.randrange(-rangeZ, rangeZ)
        randomScale = random.randrange(1, 5)

        cmds.setAttr(cloudCopy+".translate", randomX, randomY, randomZ)
        cmds.setAttr(cloudCopy+".scale", randomScale, randomScale, randomScale)

        cmds.parent(cloudCopy, topGroup)


makeSceneClouds("pSphere1")