from django.core.exceptions import PermissionDenied

from django.http import HttpResponse

from django.template import engines

from django.template.response import TemplateResponse

def normal_view(request):

    return HttpResponse("OK")

def template_response(request):

    template = engines["django"].from_string(

        "template_response OK{% for m in mw %}\n{{ m }}{% endfor %}"

    )

    return TemplateResponse(request, template, context={"mw": []})

def server_error(request):

    raise Exception("Error in view")

def permission_denied(request):

    raise PermissionDenied()

def exception_in_render(request):

    class CustomHttpResponse(HttpResponse):

        def render(self):

            raise Exception("Exception in HttpResponse.render()")

    return CustomHttpResponse("Error")

async def async_exception_in_render(request):

    class CustomHttpResponse(HttpResponse):

        async def render(self):

            raise Exception("Exception in HttpResponse.render()")

    return CustomHttpResponse("Error")