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A Flask skeleton for Google App Engine, using html5 boilerplate templating.
Python JavaScript C
tag: v1.0

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  • Added email functionality.
    • NOTE: You'll have to update the from_address variable in in order for it to work properly.
    • Don't forget to run the development server with the --enable_sendmail . command.
  • Added file for running unittest. Deleted
    • Tests kept in tests directory.
    • Now uses GAE v1.4.3 testbed functionality.

What is this?

It's just a simple Flask skeleton for Google App Engine, but made with all the baked-in-goodness of html5 boilerplate.

I'm planning on using this for my GAE projects going forward (I really like the speed of Flask compared to Django-Nonrel on GAE), so I thought someone else might find it useful, too.

Just about everything is ready to go right out of the box -- including QUnit for JavaScript tests and a tests directory for Python's unittest. Also, I included a style.less file since I primarily only use the when writing stylesheets nowadays.

Why should I use it?

I stumbled a bit figuring out how to add tests and use the unittest module, and also setup an file to connect to GAE's remote API, so this skeleton might come in handy for you.

I looked at two other Flask GAE skeletons on Github (flask-gae-skeleton and flask-gae-template -- both of which were awesome for learning), and I adapted what I felt were some of their best parts. Recently, I've updated this project's structure after browsing the source code of another GAE project skeleton.

Lastly, as an added bonus, the scripts are PEP8 compliant.

How do I use it?

Make sure you have the Google App Engine SDK installed on your computer, and you've created an application for your Google account. The SDK will also install symlinks to its packages on your computer.

Steps to Get Up and Running

  1. Create a new application on Google App Engine.

  2. git clone this repo into your personal project folder.

  3. Amend the app.yaml file with your application's name.

  4. Run the project from your development server (use the . command or use the Google App Engine Launcher GUI).

  5. Browse the sample application in your web browser: http://localhost:8080

  6. Once you're ready to read the source code, check out the app directory.

  7. All static media is stored in the static directory.

  8. Before you deploy, don't forget to:

    • Update the humans.txt file.
    • Uncomment the default_expiration in app.yaml

Useful Commands


git clone <your_app_name_here>

Run .

If you're planning on using email functionality with the development server, use the following command: --enable_sendmail .

Deploy update .



Remote Console

python .


  • add more tests
  • add to libs
    • create PEP8 TestCase, too
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