def handler signal kwargs def wrapper func signal connect func kwargs

def handler(signal, **kwargs)
    def wrapper(func)
        signal.connect(func, **kwargs)
        return func
    return wrapper

### Example:
from django.db.models.signals import post_save

@handler(post_save, sender=User)
def vote_recived(sender, **kwargs):
    instance = kwargs['instance']
    if isinstance(instance.object, Video) or isinstance(instance.object, Picture):
        object = instance.object        
        counter = [vote.vote for vote in object.votes.all()]
        object.score = sum(counter)
        object.save()