我试图连接到 Impala 使用 Impala ，每次我得到这个错误

Could not start SASL: b'Error in sasl_client_start (-4) SASL(-4): no mechanism available: Unable to find a callback: 2'

我已安装：

impyla==0.16.2
thrift_sasl==0.4.2
thrift==0.13.0
thriftpy==0.3.9
thriftpy2==0.4.11

我正在使用

connect = connect(host=server, port=21050, user=login, password=passwd, use_ssl=True, auth_mechanism='LDAP')

我以前在Python2.7上使用过它，而且它还在工作，现在当我移到3.6时它停止了。
编辑：我挖掘了更多的信息，似乎thrift\u sasl无法识别“ldap”身份验证

TTransportException                       Traceback (most recent call last)
<ipython-input-4-562dbef67d96> in <module>
      7 select_offset = 0
      8 
----> 9 connect = connect(host='azrudb7006.ra.rockwell.com', port=21050, database=db_name, user=login, password=passwd, use_ssl=True, auth_mechanism="LDAP")

~\Anaconda3\envs\py36\lib\site-packages\impala\dbapi.py in connect(host, port, database, timeout, use_ssl, ca_cert, auth_mechanism, user, password, kerberos_service_name, use_ldap, ldap_user, ldap_password, use_kerberos, protocol, krb_host, use_http_transport, http_path)
    148                           auth_mechanism=auth_mechanism, krb_host=krb_host,
    149                           use_http_transport=use_http_transport,
--> 150                           http_path=http_path)
    151     return hs2.HiveServer2Connection(service, default_db=database)
    152 

~\Anaconda3\envs\py36\lib\site-packages\impala\hiveserver2.py in connect(host, port, timeout, use_ssl, ca_cert, user, password, kerberos_service_name, auth_mechanism, krb_host, use_http_transport, http_path)
    823                                 auth_mechanism, user, password)
    824 
--> 825     transport.open()
    826     protocol = TBinaryProtocol(transport)
    827     if six.PY2:

~\Anaconda3\envs\py36\lib\site-packages\thrift_sasl\__init__.py in open(self)
     94       if status not in (self.OK, self.COMPLETE):
     95         raise TTransportException(type=TTransportException.NOT_OPEN,
---> 96           message=("Bad status: %d (%s)" % (status, payload)))
     97       if status == self.COMPLETE:
     98         break

TTransportException: Bad status: 3 (b'Unsupported mechanism type ')