# Stackless Python

Introduction

Stackless Python is an enhanced version of the Python programming language.

This example shows how to take advantage of Stackless Python with the Twisted framework.

## Example

The following example shows how a single method is exposed in this way:

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    import stackless

    from   twisted.web import resource, http, server, error
    from   twisted.internet import reactor
    from   twisted.python import log

    from   pyamf import remoting
    from   pyamf.remoting.gateway.twisted import TwistedGateway
    from   twisted.internet import defer
    from   twisted.internet import task

    class EchoServer(TwistedGateway):

       def __init__(self):
           super(EchoServer, self).__init__()
           self.request = None
           return

       def __echo__(self, request, deferred, y):
           deferred.callback(y)

       def echo(self, request, y):
           deferred = defer.Deferred()
           stackless.tasklet(self.__echo__)(request, deferred, y)

           return deferred

    if __name__== "__main__":
       gw = EchoServer()
       gw.addService(gw.echo, "echo", "echo")

       root = resource.Resource()
       root.putChild('gwplayer', gw)
       reactor.listenTCP(8080, server.Site(root))
       print "server running on localhost:8080"

       task.LoopingCall(stackless.schedule).start(.01)
       stackless.tasklet(reactor.run)()
       stackless.run()