This is a simple Python JSON-RPC (v1) client over HTTP that can work threaded with callbacks or non-threaded.

Threaded usage:

def onResult(result):
    print 'success :-) : ' + str(result)
def onError(error):
    print 'failure :-( : ' + error['message']
p = Proxy('http://www.desfrenes.com/service/hello')
p.call('hello', ['John Doe'], onResult, onError)

Non-threaded usage:

p = Proxy('http://www.desfrenes.com/service/hello')
result = p.hello('John Doe')
print result

Support for http basic auth:

p = Proxy('http://www.desfrenes.com/service/hello','user','password')
result = p.hello('John Doe')
print result