Tweepy does not handle 429 HTTP error (Too many Requests)

I am currently using Tweepy library, and I launched it since several days. However after a while, I received the following message between each tweet collected:

HTTP Error 429: Too Many Requests

Or

Service not available

I thought set as True the function while handle this kind of thing, or maybe it does not take account of 429 error ? I just requested about 10 terms in my filter, which returns around 1 tweet per 5-10 sec maximum.

How can I handle this kind of issue ? There is my piece of code btw:

streamer = tweepy.Stream(auth=api.auth, listener=StreamListener(), timeout=3000000000)

streamer.filter(None,terms)



class StreamListener(tweepy.StreamListener):

    status_wrapper = TextWrapper(width=60, initial_indent='    ', subsequent_indent='    ')



def on_status(self, status):

    print ('{} {} - {}'.format(status.author.screen_name, status.created_at,status.text))

    saveTweet(status)

def on_disconnect(self, notice):

    print ("Disconnect: {}".format(notice))

    return



def on_warning(self, notice):

    print ("Warning: {}".format(notice))

    return



def on_exception(self, exception):

    print ("Exception: ".format(exception))

    return

def on_error(self, status_code):

    if (status_code == 403):

         print("Limit probably reached")

    else:

         print("Error occured > {}".format(status_code))

    return False