old_contents: from celery.task import task
  
  
  @task
  def subscribe(email, newsletter_list, lang=None, user=None):
      from courriers.backends import get_backend
  
      backend = get_backend()()
  
      try:
          backend.register(email=email,
                           newsletter_list=newsletter_list,
                           lang=lang,
                           user=user)
      except Exception as e:
          raise subscribe.retry(args=[email, newsletter_list, lang, user], exc=e, countdown=5)
  
  
  @task
  def unsubscribe(email, newsletter_list=None, lang=None, user=None):
      from courriers.backends import get_backend
  
      backend = get_backend()()
  
      try:
          backend.unregister(email=email,
                             newsletter_list=newsletter_list,
                             lang=lang,
                             user=user)
      except Exception as e:
          raise unsubscribe.retry(args=[email, newsletter_list, lang, user], exc=e, countdown=5)
  
new_contents: from celery.task import task
  
  
  @task
  def subscribe(email, newsletter_list, lang=None, user=None):
      from courriers.backends import get_backend
  
      backend = get_backend()()
  
      try:
          backend.register(email=email,
                           newsletter_list=newsletter_list,
                           lang=lang,
                           user=user)
      except Exception as e:
          raise subscribe.retry(args=[email, newsletter_list, lang, user], exc=e, countdown=30)
  
  
  @task
  def unsubscribe(email, newsletter_list=None, lang=None, user=None):
      from courriers.backends import get_backend
  
      backend = get_backend()()
  
      try:
          backend.unregister(email=email,
                             newsletter_list=newsletter_list,
                             lang=lang,
                             user=user)
      except Exception as e:
          raise unsubscribe.retry(args=[email, newsletter_list, lang, user], exc=e, countdown=30)
  
subject: Fix the delay for subscription and unsubscription retry