twitter.py 文件源码

def MaximumHitFrequency(self):
    '''Determines the minimum number of seconds that a program must wait
    before hitting the server again without exceeding the rate_limit
    imposed for the currently authenticated user.

    Returns:
      The minimum second interval that a program must use so as to not
      exceed the rate_limit imposed for the user.
    '''
    rate_status = self.GetRateLimitStatus()
    reset_time  = rate_status.get('reset_time', None)
    limit       = rate_status.get('remaining_hits', None)

    if reset_time:
      # put the reset time into a datetime object
      reset = datetime.datetime(*rfc822.parsedate(reset_time)[:7])

      # find the difference in time between now and the reset time + 1 hour
      delta = reset + datetime.timedelta(hours=1) - datetime.datetime.utcnow()

      if not limit:
          return int(delta.seconds)

      # determine the minimum number of seconds allowed as a regular interval
      max_frequency = int(delta.seconds / limit) + 1

      # return the number of seconds
      return max_frequency

    return 60