Using Google's App Engine with Python SDK

Question

I have installed the Google App Engine; the GAE launcher GUI; and the Python SDK.

I have successfully deployed a webpage using the GUI, and my test page is now viewable at the external URL.

Unfortunately, the only way I have known to do this, is to include all my HTML code in the Python .py file within the GAE directory. What I WANT to do, is to include code in my .py file that calls a separate .html file. So far despite my best search efforts I can't understand how to write this. Can anyone help please?

Thanks in advance

Did you read the documentation? It shows you exactly how to use Jinja2 templates with Python. — Daniel Roseman
– Daniel Roseman, Commented Jan 11, 2014 at 16:39
The GAE documentation is full of examples on how to use templating and assets, did you read through those yet? — Martijn Pieters
– Martijn Pieters, Commented Jan 11, 2014 at 16:56
Hi Daniel. Thanks for replying. I have followed the instructions of the help pages to include Jinja2 (ie adding reference to the .yaml file). However when I do this, and then try to run my web app in the GAE GUI, it fails to do so. IIeinstead of a little green circle appearing, a "!" In a warning triangle is displayed. Afterwards I can't get the web app to ru , or the browser to load the page when accessing localhost:8080 (the port allocated by the Google GUI). — user3185382
– user3185382, Commented Jan 11, 2014 at 19:08

Michael Aquilina · Accepted Answer · 2014-01-12 18:52:35Z

First off, install Jinja2 using pip in a terminal (or command line):

pip install jinja2

Secondly, include it in your app.yaml file as a library.

libraries:
- name: webapp2
  version: "2.5.2"
- name: jinja2
  version: "2.6"

Declare a Jinja environment in your code so that you can render templates:

import jinja2

env = jinja2.Environment(
    loader=jinja2.FileSystemLoader('templates')
)

Now you need to create a template .html file in a 'templates' folder. If we create an "index.html" template that we want to render in code we would write:

template = env.get_template('index.html')
self.response.write(template.render())

There is obviously a lot more you can do with templates than simply render html - you can have a look at features on Jinjas website.

The process for doing all of this is better explained here in the python tutorial for google app engine.

If you need an example, I have recently open sourced a google app engine application I developed on github and you can take a look at it for some guidance if you wish.

Collectives™ on Stack Overflow

Using Google's App Engine with Python SDK

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related