(cls, list)
return len([i for i in list if cls._only_below_fermi(i)])
returns number of identified hole states in list.
returns number of identified hole states in list.
returns number of identified hole states in list .
def _count_holes(cls, list):
        """
        returns number of identified hole states in list.
        """
        return len([i for i in list if cls._only_below_fermi(i)])
def _count_holes ( cls , list ) : return len ( [ i for i in list if cls . _only_below_fermi ( i ) ] )