如何解决SUDS中的“请求中没有可用操作”？

Question

首先，我导入了SUDS客户端和日志记录功能。

from suds.client import Client as SudsClient
import logger

logging.basicConfig(level=logging.INFO)
logging.getLogger('suds.client').setLevel(logging.DEBUG)

我得到了两个wsdl文件，一个是enterprise.wsdl，另一个是ProgrammerClientHandler.wsdl.xml。我使用enterprise.wsdl文件来登录，方法是：

# Authentication and get more information for set up
enterprise_client = SudsClient(enterprise_url)
response = enterprise_client.service.login(username, "%s%s" % (password,token))

然后我会得到sessionId和serverUrl，这些信息会传递给另一个SUDS客户端对象。

session_id = response.sessionId
server_url = response.serverUrl

soap_header = enterprise_client.factory.create('SessionHeader')
soap_header.sessionId = session_id

接着，我通过提供的server_url来指向用户的SUDS客户端。

programmerclienthandler_client = SudsClient(handler_url)
programmerclienthandler_client.set_options(soapheaders=[soap_header])
programmerclienthandler_client.set_options(location=server_url)
programmerclienthandler_client.set_options(port = 'ProgrammerClientHandler')

如果我打印出programmerclienthandler_client，它会显示这个内容：

Service ( ProgrammerClientHandlerService ) tns="http://soap.sforce.com/schemas/class/axlea/ProgrammerClientHandler"
Prefixes (1)
  ns0 = "http://soap.sforce.com/schemas/class/axlea/ProgrammerClientHandler"
Ports (1):
  (ProgrammerClientHandler)
     Methods (1):
        getProgrammerClientXML()
     Types (5):
        ID
        LogCategory
        LogCategoryLevel
        LogInfo
        LogType

现在我需要通过以下方式调用getProgrammerClientXML()函数：

 programmerclienthandler_xml = programmerclienthandler_client.service.getProgrammerClientXML()

但是当我调用这个函数时，我遇到了错误：

DEBUG:suds.client:http failed:
<?xml version="1.0" encoding="UTF-8"?><soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"><soapenv:Body><soapenv:Fault><faultcode>soapenv:Client</faultcode><faultstring>No operation available for request {http://soap.sforce.com/schemas/class/axlea/ProgrammerClientHandler}getProgrammerClientXML</faultstring></soapenv:Fault></soapenv:Body></soapenv:Envelope>
Error: ERROR: Server raised fault: 'No operation available for request {http://soap.sforce.com/schemas/class/axlea/ProgrammerClientHandler}getProgrammerClientXML'

我该怎么做才能让它正常工作？wsdl文件是否有问题？

error handling soap web services client-server communication wsdl session management suds logging

如何解决SUDS中的“请求中没有可用操作”？

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