django - query filter on manytomany is empty

Question

In Django is there a way to filter on a manytomany field being empty or null.

class TestModel(models.Model):     name = models.CharField(_('set name'), max_length=200)     manytomany = models.ManyToManyField('AnotherModel', blank=True, null=True)  print TestModel.objects.filter(manytomany__is_null=True) 

Answer 1

print TestModel.objects.filter(manytomany=None)