Spostare File Python

import shutil
import os
import random
import time

def move(path,dest,temp):
    x=os.listdir(path)
    numerofile=len(x)

    while(numerofile>-1):

        numerofile=numerofile-1

        m=random.randint(0, numerofile)

        print(m)

        s=path+"/"+x[m]

        shutil.move(s,dest)

        del x[m]

        time.sleep(temp)
        if numerofile==0:

            return "Programma Terminato"



dest= "C:/Users/Dropbox/Cartella"
path= "C:/Users/Desktop/rinominati"
temp= 1800

print move(path,dest,temp)