limits.py 文件源码

def __init__(self, application, limits=None, limiter=None, **kwargs):
        """Initialize new `RateLimitingMiddleware`.

        It wraps the given WSGI application and sets up the given limits.

        @param application: WSGI application to wrap
        @param limits: String describing limits
        @param limiter: String identifying class for representing limits

        Other parameters are passed to the constructor for the limiter.
        """
        base_wsgi.Middleware.__init__(self, application)

        # Select the limiter class
        if limiter is None:
            limiter = Limiter
        else:
            limiter = importutils.import_class(limiter)

        # Parse the limits, if any are provided
        if limits is not None:
            limits = limiter.parse_limits(limits)

        self._limiter = limiter(limits or DEFAULT_LIMITS, **kwargs)