This is small and simple integration gravatar into flask.

Flask-Gravatar is on PyPI so all you need is:

pip install Flask-Gravatar

Initialize with flask application and default parameters:

gravatar = Gravatar(app,
                    size=100,
                    rating='g',
                    default='retro',
                    force_default=False,
                    use_ssl=False,
                    base_url=None)

Then in your template:

{{ 'zzz.sochi@gmail.com' | gravatar }}

Bigger and adult:

{{ 'zzz.sochi@gmail.com' | gravatar(size=200, rating='x') }}

All parameters are described in gravatar documentation.

Running the test suite is as simple as:

python setup.py test

or, to also show code coverage:

./run-tests.sh