tornado_jinja2.py

import tornado.web
from jinja2 import Environment, FileSystemLoader, TemplateNotFound

class TemplateRendering:
    def render_template(self, template_name, **kwargs):
        template_dirs = []
        if self.settings.get('template_path', ''):
            template_dirs.append(
                self.settings["template_path"]
            )

        env = Environment(loader=FileSystemLoader(template_dirs))

        try:
            template = env.get_template(template_name)
        except TemplateNotFound:
            raise TemplateNotFound(template_name)
        content = template.render(kwargs)
        return content


class BaseHandler(tornado.web.RequestHandler, TemplateRendering):
    def render2(self, template_name, **kwargs):
        kwargs.update({
            'settings': self.settings,
            'STATIC_URL': self.settings.get('static_url_prefix', '/static/'),
            'request': self.request,
            'reverse_url': self.reverse_url,
        })
        content = self.render_template(template_name, **kwargs)
        self.write(content)