def kline(self, period='', size=150):
     #period:1min, 5min, 15min, 30min, 60min, 1day, 1mon, 1week, 1year
     PATH = "/market/history/kline"
     url = self.__host + PATH
     params = {'size': size}
     params['symbol'] = self.__symbol
     if period:
         params['period'] = period
     return httpGET(url, params)
 def _httpGET_key(self, params, path):
     ts = datetime.utcnow().strftime('%Y-%m-%dT%H:%M:%S')
     params.update({
         'AccessKeyId': self.__accesskey,
         'SignatureMethod': 'HmacSHA256',
         'SignatureVersion': '2',
         'Timestamp': ts
     })
     hostName = urlparse.urlparse(self.__host).hostname
     params['Signature'] = sign(params, 'GET', hostName, path,
                                self.__secretkey)
     url = self.__host + path
     return httpGET(url, params)
 def last24h(self):
     PATH = '/market/detail'
     url = self.__host + PATH
     params = {'symbol': self.__symbol}
     return httpGET(url, params)
 def historyDetail(self, size=5):
     PATH = '/market/history/trade'
     url = self.__host + PATH
     params = {'size': size}
     params['symbol'] = self.__symbol
     return httpGET(url, params)
 def latestDetail(self):
     PATH = '/market/trade'
     url = self.__host + PATH
     params = {'symbol': self.__symbol}
     return httpGET(url, params)
 def merged(self):
     PATH = '/market/detail/merged'
     url = self.__host + PATH
     params = {'symbol': self.__symbol}
     return httpGET(url, params)
 def depth(self, _type='step1'):
     PATH = '/market/depth'
     url = self.__host + PATH
     params = {'type': _type}
     params['symbol'] = self.__symbol
     return httpGET(url, params)