old_contents: # coding: utf-8
  from vimtips import vimtips, addvimtip
  from admin import listadmin, addadmin, deladmin
  from ping import ping, pong
  from start import start, about
  from conversation import lsconversation
  from pi import ping_pi, take_photo
  
new_contents: # coding: utf-8
  from vimtips import vimtips, addvimtip
  from admin import listadmin, addadmin, deladmin
  from ping import ping, pong
  from start import start, about
  from conversation import lsconversation
  from pi import pingpi, takephoto
  
subject: Fix import