Django login not showing errors - django

Question

I know there are multiple questions like this around, but none of them contain a clear answer. I am using the default authentication from Django, but have trouble displaying something like 'Your username/password combination is incorrect'. Is it possible to fix this without making a custom view function?
My urls.py looks like this:
url(r'^login/$', auth_views.login, {'template_name': 'login.html'},
name='mysite_login')
Then my login.html has the following code:
{% block content %}
<section class="content">
<div class="container block">
<div class="row">
<div class="col-md-12"></div>
<form action="{% url 'mysite_login' %}" class="form-control" method="post" accept-charset="utf-8">
{% csrf_token %}
{% for field in form %}
<p>
{{ field.label_tag }}<br>
{{ field|addcss:'form-control' }}
{% if field.help_text %}
<small style="color: grey">{{ field.help_text|safe }}</small>
{% endif %}
{% for error in field.errors %}
<p style="color: red">{{ error }}</p>
{% endfor %}
</p>
{% endfor %}
<button type="submit" class="btn btn-dark">Login</button>
<input class="form-control" type="hidden" name="next" value="{{ next }}"><br>
</form>
</div>
</div>
</div>
</section>
{% endblock %}
So this all works, except for displaying the error messages. I've seen answers where you can write a custom view function and form to fix this, but I assume it should be also possible while using the build-in login functionality right? Thanks a lot.

Answer 1

The built-in login form doesn't display errors at an individual field level; it's a security risk to say that just the password is wrong, because it confirms the existence of a particular username. So the errors are raised in the general clean() method and are displayed in the template via {{ form.non_field_errors }}.