Django PDFResponse using weasyprint

pdfresponse.py

from django.template.response import TemplateResponse
from django.views.generic import DetailView

from weasyprint import HTML

class PDFResponse(TemplateResponse):
    @property
    def rendered_content(self):
        template = self.resolve_template(self.template_name)
        context = self.resolve_context(self.context_data)
        content = template.render(context)
        content = HTML(string=content, base_url=self._request.build_absolute_uri('/')).write_pdf()
        return content

class DetailPDFView(DetailView):
    content_type = 'application/pdf'
    response_class = PDFResponse