Basic concept
You render the meta tags by including a meta.html parial template in your view templates. This template will only render meta tags if it can find a meta object in the context, so you can safely include it in your base template to have it render on all your pages.
The meta.html template expects to find a dict or object called meta in the template context. In that dict or object, it will expect to find any of the following keys/attributes:
sudo yum install python34-develwhich python3
Less is a CSS pre-processor, meaning that it extends the CSS language, adding features that allow variables, mixins, functions and many other techniques that allow you to make CSS that is more maintainable, themable and extendable.