Python SOAP客户端，带有suds的WSDL调用给出了针对HTTP基本身份验证的未经授权的传输错误401

suds并未将授权标头添加到请求中，因此我手动进行了设置：

import base64# pre excluded for brevitybase64string = base64.enprestring('%s:%s' % (username, password)).replace('n', '')authenticationHeader = {    "SOAPAction" : "ActionName",    "Authorization" : "Basic %s" % base64string}client = Client(url=wsdl_url, headers=authenticationHeader)