Disable R0201 message in pylintrc since we allow for that kind of methods. R0201 tells us that method could be a function. Used when a method doesn't use its bound instance, and so could be written as a function.
Patch by: Pawel Solyga
Review by: to-be-reviewed
from django.dispatch import Signal
request_started = Signal()
request_finished = Signal()
got_request_exception = Signal(providing_args=["request"])