{% if form.errors %}
    <p>Your username or password was incorrect. Try again.</p>
{% endif %}

{% if next %}
    {% if user.is_authenticated %}
        <p>You dont have permission for this page</p>

    {% else %}
        <p>Please login to see this page</p>
    {% endif %}
{% endif %}

<form method='post' action="{% url 'login' %}">
{% csrf_token %}
{{form.username.label_tag}}
{{form.username}}

{{form.password.label_tag}}
{{form.password}}
<input type="submit" value='login'>
<input type="hidden" name='next' value="{{next}}">
 
</form>