Обмен с помощью web сервиса

import requests
import json

publicationStr = "testing_db"

arrayOfData = [
    {"ClientID": "1111", "ClientSecret": "2222"},
    {"ClientID": "3333", "ClientSecret": "4444"}
]
wsdlUrl = f"http://localhost/{publicationStr}/ws/testing?wsdl"

jsonStr = json.dumps(arrayOfData)

#headers = {
#    "Content-Type": "application/soap+xml; charset=utf-8"
#}

dataBody = f"""<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:tns="testing">
    <soap:Body>
        <tns:PostData>
            <StringOfData>{jsonStr}</StringOfData>
        </tns:PostData>
    </soap:Body>
</soap:Envelope>"""

response = requests.post(wsdlUrl, data=dataBody)