def valid_or_die():
    global config, file_name
    config = sys.modules[__name__]
    c = ConfigValidator(obj=config)
    if c.validate():
        return
    print "Configuration errors (%s):" % file_name
    for (key, err) in c.errors.items():
        print key,
        for e in err:
            print e % "\n    %s"
    sys.exit(1)
dataset/ETHPy150Open vimeo/graph-explorer/graph_explorer/config.py/valid_or_die/swapped operands of `%`