tmbabw.py

state = {
    "users":
        User.mutable.all() > {
            "tags": Tag.mutable.up().all(),
        },
    "movie":
        Movie.mutable.get(pk=91) > {
            "actors": Actor.mutable.up().all(),
            "style": Style.mutable.up().get(),
        }
}

with mutate():
    state.users[5].name = "Mark Mark"
    state.movie.watched += 1
    state.users[1].tags.append(Tag(tag="scify"))
    del state.movie.actors[4]

print state.users[5].did_change()  # True
print state.users[4].did_change()  # False
"""
{% loop user in state.users <div> %}
    {{user.email}}
    {% for tag in user.tags %}
        <li>{{tag.tag}}</li>
    {% endfor %}
{% endloop %}

{% item movie <div> %}
    {{movie.title}}
    {% loop actor in movie.actors <li> %}
        {{actor.name}}
    {% endloop %}
{% enditem %}
"""