views.py

# Create your views here.
urlpatterns = []

def route(regex, kwargs=None, name=None):
    from django.conf.urls import url
    def decorator(view):
        urlpatterns.append(url(regex, view, kwargs, name))
        def wrapper(*args, **kwargs):
            return view(*args, **kwargs)
        return wrapper
    return decorator
        
@route(r'^(?P<greeting>\w+)')
def index(req, greeting):
    return HttpResponse('Hello ' + greeting)

In urls.py do

from . import views
urlpatterns = views.urlpatterns