Is there any example code of a cpython (not IronPython) client which can call Windows Communication Foundation (WCF) service?
Even if there is not a specific example of calling WCF from Python, you should be able to make a fully SOAP compliant service with WCF. Then all you have to do is find some examples of how to call a normal SOAP service from Python.
The simplest thing will be to use the BasicHttpBinding in WCF and then you can support your own sessions by passing a session token with each request and response.
WCF needs to expose functionality through a communication protocol. I think the most commonly used protocol is probably SOAP over HTTP. Let's assume that's what you're using then.
Take a look at this chapter in Dive Into Python. It will show you how to make SOAP calls.
I know of no unified way of calling a WCF service in Python, regardless of communication protocol.
I do not know of any direct examples, but if the WCF service is REST enabled you could access it through POX (Plain Old XML) via the REST methods/etc (if the service has any). If you are in control of the service you could expose endpoints via REST as well.
if you need binary serialized communication over tcp then consider implementing solution like Thrift.
I used SUDS.
from suds.client import Client
print "Connecting to Service..."
wsdl = "http://serviceurl.com/service.svc?WSDL"
client = Client(wsdl)
result = client.service.Method(variable1, variable2)
print result
That should get you started. I'm able to connect to exposed services from WCF and a RESTful layer. There needs to be some data massaging to help do what you need, especially if you need to bind to several namespaces.