old_contents: from dogpile.cache import make_region
  
  region = make_region().configure(
      'dogpile.cache.dbm',
      expiration_time=3600,
      arguments={'filename': '/tmp/nox.dbm'}
  )
  
new_contents: from dogpile.cache import make_region
  import getpass
  
  region = make_region().configure(
      'dogpile.cache.dbm',
      expiration_time=3600,
      arguments={'filename': '/tmp/nox.dbm.'+getpass.getuser()}
  )
  
subject: Fix for multiuser environment