txTemplate

txTemplate provides adapters for a few popular template engines to make them easily callable and usable within Twisted Web.

txTemplate uses zope.interface to provide a consistent loader and template interface for every template engine.

Supported Template Engines

• ClearSilver
• Genshi
• Jinja2

Getting Started

All you really need to do to use txTemplate in twisted is:

• import it
• create a loader pointed at your template directory
• load a template with said loader
• call template.render, attach callbacks to the rendered deferred (if desired) and return the deferred from and of your twisted.web.resource.Resource render_* methods.

Here's a code sample of a Twisted Web resource that uses txTemplate to render a lovely Genshi template to say Hello World in HTML:

import os

from twisted.application import internet
from twisted.internet import reactor
from twisted.web import resource
from twisted.web import server

import txtemplate


TEMPLATE_DIR = os.path.join(os.path.dirname(os.path.abspath(__file__)),
                            "templates")


class HelloWorld(resource.Resource):
    def __init__(self):
        resource.Resource.__init__(self)
        self.loader = txtemplate.GenshiTemplateLoader(TEMPLATE_DIR)

    def getChild(self, name, request):
        return self

    def render_GET(self, request):
        template_name = "hello.xhtml"
        template = self.loader.load(template_name)
        context = {"greeting": "Hello",
                "greetee": "World"}

        def cb(content):
            request.write(content)
            request.setResponseCode(200)
            request.finish()

        d = template.render(**context)
        d.addCallback(cb)
        return server.NOT_DONE_YET


site = server.Site(HelloWorld())
reactor.listenTCP(8888, site)
reactor.run()

This example is included in txtemplate/examples/txweb.py and the root.xhtml template is in txtemplate/examples/templates/root.xhtml.