Ошибка в регулярном выражении django

urls.py:
from django.contrib import admin
from django.urls import path
from Testapp import views

urlpatterns = [
    path('admin/', admin.site.urls),
    path('', views.index ,name = 'home'),
    path('<int:human_id>/', views.detail , name = 'detail' ),
]
views.py:
def detail(request , human_id):
    try:
        detail = Human.objects.get(id = human_id)
    except:
        raise Http404('Не найдено')   
    return render(request , 'detail.html',{'detail' : detail}) 
detail.html:
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>{{ detail.name }}</title>
</head>
<body>

</body>
</html>

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