django - Error with python / django1.7 (Exception Type: AttributeError) -

i'm learning python , django , emerged me following error can not solve :

exception type: attributeerror exception value: 'queryset' object has no attribute 'apellido' 

(models)

class humano(models.model):      nombre = models.charfield(max_length=30)     apellido = models.charfield(max_length=30)      def __unicode__(self):         return self.nombre      def apellido(self):         return self.apellido 

(forms)

class formulario(forms.form):     nombre = forms.charfield(max_length=30)     apellido = forms.charfield(max_length=30) 

(views)

def comparar(request):     if request.method == 'post':         form = formulario(request.post)         if form.is_valid():             objeto = humano(              nombre = form.cleaned_data['nombre'],             apellido = form.cleaned_data['apellido'],              )               objeto2 = humano.objects.all()             n = objeto2.apellido()        # el error me marca esta linea              if n == objeto.apellido:                 z = 'los apellidos son iguales'             else:                 z = 'los apellidos son distintos'          return render_to_response('index.html', { 'z':z}, context_instance=requestcontext(request))     else:         form = formulario()     return render_to_response('index.html', {'form':form}, context_instance=requestcontext(request)) 

the purpose of view compare apellido received through form , compare other existing in database .

there couple of issues here:

since objeto2 queryset, make comparison,

objeto = humano(     nombre = form.cleaned_data['nombre'],     apellido = form.cleaned_data['apellido'], )  objeto_qs = humano.objects.all() #note dont need call here.. moreover, unless have created new manager named `appelidos`, () call not work n in objeto_qs:     if n.appellido == objeto.apellido:         z = 'los apellidos son iguales'     else:         z = 'los apellidos son distintos' 

another thing is, not saving created object. means object lost once function executes. might want consider using humano.objects.create(..)

---

finally, dont have loop through objects individually. can query database this:

if humano.objects.filter(apellido=objeto.apellido).exists():     z = 'los apellidos son iguales' else:     z = 'los apellidos son distintos'