hookenv.py 文件源码

def translate_exc(from_exc, to_exc):
    def inner_translate_exc1(f):
        @wraps(f)
        def inner_translate_exc2(*args, **kwargs):
            try:
                return f(*args, **kwargs)
            except from_exc:
                raise to_exc

        return inner_translate_exc2

    return inner_translate_exc1