def activate(request, activation_key, template_name='registration/activate.html'):
s a ``User``'s account, if their key is valid and hasn't
+ Activate a ``User``'s account, if their key is valid and hasn't
By default, uses the template ``registration/activate.html``; to
s a new user to register an account.
+ Allow a new user to register an account.
Following successful registration, redirects to either
``/accounts/register/complete/`` or, if supplied, the URL