Giotto is a python web framework. It encourages a functional style where model, view and controller code is strongly decoupled.
Key Features of Giotto include:
- Extremely terse code. A full featured blog application is under 300 lines of code (including templates)
- Support for Python 3.3, 3.2, 2.7 and 2.6
- Generic views, generic models and multiple pluggable controllers.
- Free RESTful interface along with your normal "browser POST" CRUD site.
- Functional CRUD patterns that do away with the need for django-style form objects.
- Automatic URL routing.
- Built in cache (supports Redis and Memcache, and an API for supporting any other engines)
- SQLAlchemy for database persistence.
- Jinja2 for HTML templates (with an API for extending for other template engines)
Install and create base project files:
pip install giotto mkdir demo cd demo giotto create http
Now your project is initialized. Open the manifest.py and add the following:
from giotto.programs import Manifest, Program
from giotto.views import jinja_template, BasicView
def multiply(x, y):
x = int(x or 0)
y = int(y or 0)
return {'x': x, 'y': y, 'result': x * y}
manifest = Manifest({
'multiply': Program(
model=[multiply],
view=BasicView(
html=jinja_template('multiply.html'),
),
),
})
Now create a file called multiply.html:
<!DOCTYPE html>
<html>
<body>
{{ data.x }} * {{ data.y }} == <strong>{{ data.result }}</strong>
</body>
</html>
Or if you're too lazy to make a template,
set the view keyword argument to just BasicView() to use the generic view.
Run the development server:
$ giotto http --run
Point your browser to http://localhost:5000/multiply?x=3&y=3.
Additionaly, try http://localhost:5000/multiply.json?x=3&y=3.
You can also invoke your multiply program through the command line:
$ giotto create cmd $ giotto cmd multiply --x=4 --y=2
Also:
$ giotto cmd multiply.html --x=4 --y=2
You can also use positional arguments:
$ giotto cmd multiply/4/6
Through the web as well:
$ curl http://localhost:5000/multiply/234/12
Giotto has a feature called "Model Mocking" which allows you to bypass the model. This is useful if your model is coupled to a database, which you don't want to run (for instance when you're a designer designing templates).
Add a mock object to the program:
manifest = Manifest({
'multiply': Program(
model=[multiply, {'x': 4, 'y': 5, 'result': 20}],
view=BasicView(
html=jinja_template('multiply.html'),
),
),
})
When you run the server, add the --model-mock
option:
$ giotto http --run --model-mock
Now, all requests will bypass the multiply function, and will return the mock instead:
$ curl http://localhost:5000/multiply.json/12312/21323
{"x": 4, "y": 5, "result": 20}
$ curl http://localhost:5000/multiply.json/3/13
{"x": 4, "y": 5, "result": 20}
- To discuss Giotto, please visit the Google Group
- Read Giotto's documentation.
- Check out giottoblog, a full featured blog application written with the Giotto framework.
- Also, dylanshows, another site written with Giotto.
