trying to display custom error message on form

[mp3909]

Hi,

I am trying to display a custom error message when the user enters a wrong password in a login form on my django app.
Currently, when the user enters a wrong password, it displays an error message saying "Invalid login". Also, not sure why it has a bullet point in front of it as well.

This is code in my login.html:

{% extends 'base.html' %}

{% block content %}

<form method="post">
	{% csrf_token %}

	{% for field in login_form %}
		<p>
			{{field.label_tag}}
			{{field}}

			{% if field.help_text %}
				{field.help_text}}
			{% endif %}
		</p>
	{% endfor %}

	{% for field in login_form %}
		{% for error in field.errors %}
			<p>{{error}}</p>
		{% endfor %}
	{% endfor %}

	{% if login_form.non_field_errors %}
		<p>{{login_form.non_field_errors}}</p>
	{% endif %}

	<button type="submit">login</button>	
</form>

{% endblock content %}

Thanks