old_contents: from dashboard import *
  from subject import *
  from period import *
  from assignment import *
  from createnewassignment import *
  from managestudents import *
  from rest import *
  
new_contents: #from dashboard import *
  from subject import *
  from period import *
  from assignment import *
  from createnewassignment import *
  from managestudents import *
  from rest import *
  
subject: Comment out dashboard.