# Source code for cherrypy.tutorial.tut08_generators_and_yield

    """
    Bonus Tutorial: Using generators to return result bodies

    Instead of returning a complete result string, you can use the yield
    statement to return one result part after another. This may be convenient
    in situations where using a template package like CherryPy or Cheetah
    would be overkill, and messy string concatenation too uncool. ;-)
    """

    import os.path

    import cherrypy

    class GeneratorDemo:

        def header(self):
            return '<html><body><h2>Generators rule!</h2>'

        def footer(self):
            return '</body></html>'

        @cherrypy.expose
        def index(self):
            # Let's make up a list of users for presentation purposes
            users = ['Remi', 'Carlos', 'Hendrik', 'Lorenzo Lamas']

            # Every yield line adds one part to the total result body.
            yield self.header()
            yield '<h3>List of users:</h3>'

            for user in users:
                yield '%s<br/>' % user

            yield self.footer()

    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(GeneratorDemo(), config=tutconf)