def __init__()

in genmd.py [0:0]


    def __init__(self, path="announce"):
        self.path = path
        self.tree = [x for x in os.walk(self.path)]
        try:
            assert self.tree[0][1][0] == "2005"
            assert len(self.tree) == len(self.tree[0][1]) + 1
        except AssertionError as e:
            raise Exception("Unknown advisory tree format, reason %s" % e)