def __init__(self, name, filename=None):
        self.name = name
        super(NamedRequirements, self).__init__(filename=filename)
def matchfn(self, f):
        # XXX: is_dir is set to True here for performance.
        # It should be set to whether "f" is actually a directory or not.
        return self._matcher.match_relative(f, True)