circuits 3.2

你好

#!/usr/bin/env python"""circuits Hello World"""fromcircuitsimportComponent,Eventclasshello(Event):"""hello Event"""classApp(Component):defhello(self):"""Hello Event Handler"""print("Hello World!")defstarted(self,component):"""Started Event Handler

        This is fired internally when your application starts up and can be used to
        trigger events that only occur once during startup.
        """self.fire(hello())# Fire hello EventraiseSystemExit(0)# Terminate the ApplicationApp().run()

回声服务器

#!/usr/bin/env python"""Simple TCP Echo Server

This example shows how you can create a simple TCP Server (an Echo Service)
utilizing the builtin Socket Components that the circuits library ships with.
"""fromcircuitsimporthandler,Debuggerfromcircuits.net.socketsimportTCPServerclassEchoServer(TCPServer):@handler("read")defon_read(self,sock,data):"""Read Event Handler

        This is fired by the underlying Socket Component when there has been
        new data read from the connected client.

        ..note :: By simply returning, client/server socket components listen
                  to ValueChagned events (feedback) to determine if a handler
                  returned some data and fires a subsequent Write event with
                  the value returned.
        """returndata# Start and "run" the system.# Bind to port 0.0.0.0:9000app=EchoServer(9000)Debugger().register(app)app.run()

你好网络

#!/usr/bin/env pythonfromcircuits.webimportServer,ControllerclassRoot(Controller):defindex(self):"""Index Request Handler

        Controller(s) expose implicitly methods as request handlers.
        Request Handlers can still be customized by using the ``@expose``
        decorator. For example exposing as a different path.
        """return"Hello World!"app=Server(("0.0.0.0",9000))Root().register(app)app.run()

更多examples…

注意

您可以安装development version 通过pip install circuits==dev。