def __init__(self, groups=None):
        super(GroupedRequirements, self).__init__(NamedRequirements)
        self.groups = groups or self.default_groups
        self.filename = None
        self.create_default_groups()
def __init__(self, master=None, **kwargs):
        ScrolledText.__init__(self, master=None, **kwargs)
        Diacritical.__init__(self)