Django Auth视图登录页未显示错误

from django.contrib.auth.views import login

urlpatterns = [
    # ...
    path('login/', login, name='login'),
    # ...
]

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [os.path.join(BASE_DIR, 'templates')],
        # ...
    },
]

from django.contrib.auth import authenticate, login
from django.contrib.auth.forms import AuthenticationForm
from django.shortcuts import render, redirect

def login_view(request):
    if request.method == 'POST':
        form = AuthenticationForm(request, data=request.POST)
        if form.is_valid():
            username = form.cleaned_data.get('username')
            password = form.cleaned_data.get('password')
            user = authenticate(request, username=username, password=password)
            if user is not None:
                login(request, user)
                return redirect('home')
    else:
        form = AuthenticationForm()
    return render(request, 'login.html', {'form': form})

{% load static %}
<link rel="stylesheet" href="{% static 'css/login.css' %}">

STATIC_URL = '/static/'
STATICFILES_DIRS = [
    os.path.join(BASE_DIR, 'static'),
]