from xhtml2pdf import pisa
from django.template.loader import get_template
from django.http import HttpResponse
from io import BytesIO

def render_pdf(template_src_, context_dict={}):
   template = get_template(template_src_) 
   html = template.render(context_dict)
   result = BytesIO()
   pdf = pisa.pisaDocument(BytesIO(html.encode("ISO-8859-1")), result)
   if not pdf.err:
       return HttpResponse(result.getvalue(), content_type='application/pdf')
   return None