Django 'function' object has no attribute 'objects'

your view function name is defined as Like and your model is named Like

you define Like as a function so when you go to access Like.objects python does not see your model Like but the function Like

you could rename your view function

url(r'^like/(?P\d+)/$', 'pet.views.change_name_no_conflict', name = 'Like' )


def change_name_no_conflict(request,picture_id):
  pass

Model name and view name shouldn't be same.