def METHOD_NAME(self):
    # check for special comment used in 2.7.1 and higher
    if not os.path.isfile(self.manifest):
        return False
    with io.open(self.manifest, 'rb') as fp:
        first_line = fp.readline()
    return (first_line !=
            '# file GENERATED by distutils, do NOT edit\n'.encode())