def clear(self):
        super(GroupedRequirements, self).clear()
        self.create_default_groups()
def __init__(self, root, cwd, badfn=None, gitignorepaths=None):
        super(gitignorematcher, self).__init__(root, cwd, badfn)
        gitignorepaths = gitignorepaths or []
        self._matcher = pathmatcher.gitignorematcher(root, gitignorepaths)