python - Django 1.10 - NoReverseMatch at /login/ when trying to render login page -

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this question has been asked many times couldn't figure out problem.

i started development django. developing log app authenticate users project using django in-built authentication system.

i facing error when rendering login page through project.urls.

url(r'^login/$', views.login, {'template_name': 'login.html', 'authentication_form': loginform}),

i used loginform customize html fields bootstrap css classes.

here app views.py -

@login_required(login_url="login/") def home(request):     return render(request, "home.html")

if user not logged in login_required redirect user login page. getting error when rendering login page in login.html file -

<form method="post" action="{% url 'django.contrib.auth.views.login' %}">

when remove login_required, home page works.

can please elaborate issue?

Alcombright