How to use the eventy.views.EventYearView function in eventy

from django.conf.urls.defaults import *
from django.views.generic import ListView, DetailView
from eventy.models import Event, EventTime, Calendar, Place
from eventy.views import EventDetailView, EventDayView, EventMonthView, EventYearView, EventListView

urlpatterns = patterns('',
    url(r'^(?P\d{4})/(?P\w{3})/(?P\d{1,2})/$', view=EventDayView.as_view(),    name='ev-events-day'),
    url(r'^(?P\d{4})/(?P\w{3})/$',                  view=EventMonthView.as_view(),  name='ev-events-month'),
    url(r'^(?P\d{4})/$',                                   view=EventYearView.as_view(),   name='ev-events-year'),

    url(r'^calendars/(?P[-\w]+)/(?P\d{4})/$',                  view=EventYearView.as_view(),   name='ev-calendar-year'),
    url(r'^calendars/(?P[-\w]+)/(?P\d{4})/(?P\w{3})/$', view=EventMonthView.as_view(),  name='ev-calendar-month'),
    url(r'^calendars/(?P[-\w]+)/$',                                  view=EventListView.as_view(),   name='ev-calendar-detail'),
    url(r'^calendars/$',                                                       view=ListView.as_view(model=Calendar), name='ev-calendar-list'),

    url(r'^places/$', view=ListView.as_view(model=Place), name='place-list'),
    url(r'^places/(?P[-\w]+)/$', view=DetailView.as_view(model=Place), name='place-detail'),

    url(r'^(?P[-\w]+)/(?P\d{4})/(?P\w{3})/(?P\d{1,2})/$', view=EventDetailView.as_view(), name='ev-event-detail'),
    url(r'^(?P[-\w]+)/(?P\d{4})/(?P\w{3})/$',                  view=EventMonthView.as_view(),  name='ev-event-month'),
    url(r'^(?P[-\w]+)/(?P\d{4})/$',                                   view=EventYearView.as_view(),   name='ev-event-year'),
    url(r'^(?P[-\w]+)/$',                                                   view=DetailView.as_view(model=Event), name='ev-events-info'),
    url(r'^$', view=EventListView.as_view(), name='event-list'),
)

urlpatterns = patterns('',
    url(r'^(?P\d{4})/(?P\w{3})/(?P\d{1,2})/$', view=EventDayView.as_view(),    name='ev-events-day'),
    url(r'^(?P\d{4})/(?P\w{3})/$',                  view=EventMonthView.as_view(),  name='ev-events-month'),
    url(r'^(?P\d{4})/$',                                   view=EventYearView.as_view(),   name='ev-events-year'),

    url(r'^calendars/(?P[-\w]+)/(?P\d{4})/$',                  view=EventYearView.as_view(),   name='ev-calendar-year'),
    url(r'^calendars/(?P[-\w]+)/(?P\d{4})/(?P\w{3})/$', view=EventMonthView.as_view(),  name='ev-calendar-month'),
    url(r'^calendars/(?P[-\w]+)/$',                                  view=EventListView.as_view(),   name='ev-calendar-detail'),
    url(r'^calendars/$',                                                       view=ListView.as_view(model=Calendar), name='ev-calendar-list'),

    url(r'^places/$', view=ListView.as_view(model=Place), name='place-list'),
    url(r'^places/(?P[-\w]+)/$', view=DetailView.as_view(model=Place), name='place-detail'),

    url(r'^(?P[-\w]+)/(?P\d{4})/(?P\w{3})/(?P\d{1,2})/$', view=EventDetailView.as_view(), name='ev-event-detail'),
    url(r'^(?P[-\w]+)/(?P\d{4})/(?P\w{3})/$',                  view=EventMonthView.as_view(),  name='ev-event-month'),
    url(r'^(?P[-\w]+)/(?P\d{4})/$',                                   view=EventYearView.as_view(),   name='ev-event-year'),
    url(r'^(?P[-\w]+)/$',                                                   view=DetailView.as_view(model=Event), name='ev-events-info'),
    url(r'^$', view=EventListView.as_view(), name='event-list'),
)

def get_context_data(self, **kwargs):
        context = super(EventYearView, self).get_context_data(**kwargs)
        try:
            context['next_date'] = context['date_list'][0] + relativedelta(years=1)
            context['prev_date'] = context['date_list'][0] - relativedelta(years=1)
        except:
            pass
        return context