def login_successful(request):
    return render(request,"login_successful.html")

def login_invalid(request):
    return render(request,"login_invalid.html")


def login(request):
    return render(request,'login.html',c)

def loginauth(request):
    username=request.POST.get("username",'')
    password=request.POST.get("password",'')
    user=auth.authenticate(username=username,password=password)
    if user is not none:
        user.login(request.user)
        return redirect(login_successful)
    else:
        return redirect(login_invalid)

urlpatterns = [
url(r'^registration/',views.registration),
url(r'^registration_successful/',views.registration_successful),
url(r'^home/',views.home),
url(r'^login/',views.login),

url(r'^login_successful/',views.login_successful),
url(r'^login_invalid/',views.login_invalid),
url(r'^login/auth',views.loginauth)
]

url(r'^login/$', views.login),