python metaclass AllStaticMethods

metaclasses.py

class AllStaticMethods(type):
    """
    """
    def __new__(cls, name, bases, dct, finished=True):
        """
            NOTE: the 'finished' flag is used for chaining..
                  make sure you know what you're doing if you use it.
        """
        is_nonprivate_function = lambda name,obj: (not name.startswith('_')) and is_function(obj)
        for x in dct:
            if is_nonprivate_function(x,dct[x]):
                dct[x] = staticmethod(dct[x])
        if finished:
            return type.__new__(cls, name, bases, dct)
        else:
            return (cls, name, bases, dct)