Aren’t django signals a little like comefrom?

In computer programming, COMEFROM (or COME FROM) is an obscure control flow structure used in some programming languages, primarily as a joke.

I never liked using signals. Recently I was asked that, and has no answer, but a little thinking led me to this question. Aren’t signals a little like COMEFROM. If yes, aren’t they as bad as COMEFROM? If you do not know what a COMEFROM is, wikipedia to the rescue

Some hypothetical code using COMEFROM, again from wikipedia,

from goto import comefrom, label
comefrom .repeat
name = raw_input('what is your name? ')
if name:
    print "Hello",name
    label .repeat
print "Goodbye!"

And Some actual Django code using signals

class Post(models.Model):
    name = models.CharField(...)
    ...
    num_comments = models.PositiveIntegerField(default = 0)

class Comment(models.Model):
    ...
    post = models.ForeignKey(Post)

def handle_num_comments(sender, **kwargs):
    instance = kwargs['instance']
    instance.post.num_comments+=1
    instance.post.save()

from django.db.signals import post_save

post_save.connect(handle_num_comments, sender=Comment)

And the same code using COMEFROM

class Post(models.Model):
    name = models.CharField(...)
    ...
    num_comments = models.PositiveIntegerField(default = 0)

class Comment(models.Model):
    ...
    post = models.ForeignKey(Post)

    def save(self, *args, **kwargs):
        super(Comment, self).save(*args, **kwargs)
        instance = self
        LABEL .post_save

def handle_num_comments(sender, **kwargs):
    instance = kwargs['instance']
    COMEFROM .post_save
    instance.post.num_comments+=1
    instance.post.save()

So isn’t the signals code a little like COMEFROM, and why is it superior to COMEFROM?

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• There is a library to add goto and comefrom to Python
• Discussion about COMEFROM

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