ImageField | error

Folks,

I'm using django 1.9. I'm having the following problem. When I update the object of Pessoa, described below, I receive the following error message: "i/o operation on closed file". Does anyone have any solution. Thanks.

Erick

**** models.py ****

class Pessoa(models.Model):

        ...

imagem = models.ImageField(upload_to=upload_location, blank=True, null=True)

        ...

**** views.py

def image_update(request, pessoa_id):

instance = get_object_or_404(Pessoa, id=pessoa_id)

form = ImageForm(request.POST or None, request.FILES or None, instance=instance)

if(form.is_valid()):

if(instance.imagem != None):

instance.imagem.delete()

instance.imagem = request.FILES.get('imagem')

instance.last_update_at = date.today()

instance.save()

#return HttpResponseRedirect(reverse('pessoa:editar', kwargs={'pessoa_id': pessoa_id}))

context = {

"instance": instance,

"form": form

}

return render(request, "pessoa/pessoa_image_form.html", context)

**** forms.py

class ImageForm(forms.ModelForm):

class Meta:

model = Pessoa

fields = ['imagem']

**** html

<form id="formulario" action="" method="POST" enctype="multipart/form-data">

{% csrf_token %}

{{ form.non_field_errors }}

{{ form.field_errors }}

        <div class="fieldWrapper">

{{ form.imagem.errors }}

<label for="nome">Imagem:</label><br/>

{{ form.imagem }}

</div><br/>

<input type="submit" value="Salvar" class="button">

</form>

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