The robots are trying to take over the world. Ensure that your forms are used only by humans.
django-humanity adds a simple mathematical equation to your form that users must solve in order to submit. Computers are notoriously terrible at math, so this is a task that only humans (or maybe dolphins) can accomplish.
Create your form as a subclass of HumanityForm:
from humanity.forms import HumanityForm
class MyForm(HumanityForm):
pass
That's it! Just include the form in your template and everything will be handled for you.