1. cherrypy
  2. CherryPy


CherryPy / cherrypy / tutorial / tut01_helloworld.py

Tutorial - Hello World

The most basic (working) CherryPy application possible.

# Import CherryPy global namespace
import cherrypy

class HelloWorld:
    """ Sample request handler class. """

    def index(self):
        # CherryPy will call this method for the root URI ("/") and send
        # its return value to the client. Because this is tutorial
        # lesson number 01, we'll just send something really simple.
        # How about...
        return "Hello world!"

    # Expose the index method through the web. CherryPy will never
    # publish methods that don't have the exposed attribute set to True.
    index.exposed = True

import os.path
tutconf = os.path.join(os.path.dirname(__file__), 'tutorial.conf')

if __name__ == '__main__':
    # CherryPy always starts with app.root when trying to map request URIs
    # to objects, so we need to mount a request handler root. A request
    # to '/' will be mapped to HelloWorld().index().
    cherrypy.quickstart(HelloWorld(), config=tutconf)
    # This branch is for the test suite; you can ignore it.
    cherrypy.tree.mount(HelloWorld(), config=tutconf)