初始化

初始化先构造Pegasus对象，在使用init函数完成初始化：

  1. class Pegasus(object):
  2.     """
  3.     Pegasus client class.
  4.     """
  6.     def __init__(self, meta_addrs=None, table_name='',
  7.                  timeout=DEFAULT_TIMEOUT):
  8.         """
  9.         :param meta_addrs: (list) pagasus meta servers list.
  10.                            example: ['127.0.0.1:34601', '127.0.0.1:34602', '127.0.0.1:34603']
  11.         :param table_name: (str) table name/app name used in pegasus.
  12.         :param timeout: (int) default timeout in milliseconds when communicate with meta sever and replica server.
  13.         """
  1.     def init(self):
  2.         """
  3.         Initialize the client before you can use it.
  5.         :return: (DeferredList) True when initialized succeed, others when failed.
  6.         """