How to open a screen with pre-filled form with HTML?

I would like to know how to open a form whose fields are already filled in with user data (resulting from a search in the database), and it is up to the user to only edit the information.

I am using Django to program, I was able to do the form, but I can not recover it for editing.

I even get you using the {{ form.as_p }} function, however I would like to recover this data using <input> , how do I?

Currently my view for editing is as follows:

def editar(request, pk): # Funcao para editar um aluno
post = get_object_or_404(Aluno, pk=pk)
if request.method == "POST":
    form = PostForm(request.POST, instance=post)
    if form.is_valid():
        post = form.save(commit=False)
        post.save()
        return redirect('aluno:detalhes', pk=post.pk)
else:
    form = PostForm(instance=post)
return render(request, 'aluno/editar.html', {'form': form})

And in html it looks like this:

  <form method="POST" class="post-form">{% csrf_token %}
                        <!--Entrada do nome do aluno-->
                        <label class="campos" for="nome">Nome:</label><br>
                        <input type="text" name="nome" id="nome" required autofocus >
                        <p></p>