import http.client
WMHost = "w3s.wmtransfer.com"
WMRelativeURL = "/asp/XMLOperationsCert.asp"
WMCert = "WithoutPassCerts/WMAccCert.cer"
WMKey = "WithoutPassCerts/WMAccKey.key"
WMCACert = "WithoutPassCerts/ca.crt"

Data = """
<w3s.request>
	<reqn>
		1
	</reqn>
	<getoperations>
		<purse>
			Rxxxxxxxxxxxx
		</purse>
		<datestart>
			20100601 00:00:00
		</datestart>
		<datefinish>
			20100825 21:00:00
		</datefinish>
	</getoperations>
</w3s.request>
"""

try:
    Link = http.client.HTTPSConnection(host = WMHost, port = 443, key_file = WMKey, cert_file = WMCert)
    Link.set_debuglevel(1)
    Link.request("POST", WMRelativeURL, Data)
    Result = Link.getresponse()
    print(Result.status, Result.reason)
    OutData = Result.read()
    print(OutData)
    Link.close()
except Exception as Message:
    print(Message)