The old way of connecting to a signal was:
dispatcher.connect(myFunction, signal=models.signals.post_save, sender=myModel)

The new way is:
models.signals.pre_save.connect(myFunction, sender=myModel)

So when you want to send an email whenever there’s a new comment posted by someone, without changing existing code you will have to do something like this:

from django.contrib.comments.models import Comment
from django.core.mail import send_mail
from django.db.models import signals

def mail_comment(instance, **kwargs):
subject = 'subject of the mail'
msg = 'Comment text:\n\n%s' % instance.comment
send_mail(subject, msg, 'noreply@djangodays', ['email@djangodays.com'])

signals.post_save.connect(mail_comment, sender=Comment)

If you put this code in your __init__.py file it should work fine. Putting this in there is probably not the Django way of doing things, but I’m not sure where to put it instead… I anyone found a better way of doing this, please share it in the comments!

In the tutorial you’ll learn the basics of Django by walking you through the development of a simple wiki application. Other aspects in the tutorial are: URL design, database interaction, Django templates and editing pages using Markdown syntax.

The tutorial can be found here:

http://showmedo.com/videos/video?name=1100000&

Another nice tutorial from the same author is “Using Amazon’s S3 service with Django“

It assumes you already have Django installed, and takes you through the basics of the fabulous framework:

http://docs.djangoproject.com/en/dev/intro/tutorial01/