title: Django filter many-to-many from an id
body: <p>I have a problem, I'm coding with python/django.
  I have this kind of models.py :</p>
  
  <pre><code>class Skill(models.Model):
  name = models.CharField()
      skill=models.ForeignKey(Skill)
  
  class Job(models.Model):
      name = models.CharField()
      skill= models.ManyToManyField(Skill)
  </code></pre>
  
  <p>And my problem is: I want to print for one Job, all the skills which are attached.
  Example: I have the Developer Job, with the ID=4 (in my db), and I want to print all the
  skill which are attached with the Developer Job.</p>
  
  <p>Tks !!</p>