def _get_graded_from_block(persisted_block, block):
 if persisted_block:
  return persisted_block.graded
 else:
  return _get_explicit_graded(block)

def _get_graded_from_block ( persisted_block , block ) : if persisted_block : return persisted_block . graded else : return _get_explicit_graded ( block )
returns the graded value from the persisted_block if found .