hg.stevelosh.com > hg-review

"""
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 cherrypy


class GeneratorDemo:

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

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

    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()
    index.exposed = True

cherrypy.tree.mount(GeneratorDemo())


if __name__ == '__main__':
    import os.path
    thisdir = os.path.dirname(__file__)
    cherrypy.quickstart(config=os.path.join(thisdir, 'tutorial.conf'))
author	Steve Losh <steve@stevelosh.com>
date	Tue, 02 Mar 2010 19:45:54 -0500
parents	(none)
children	(none)