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Django pdf question with pisa

I want to generate an html template in a pdf file using pisa. I believe that I have all the packages I need, but I seem to be having problems. Here is my look below what I did.

EDIT: Here is my last url, views and template.

url.py

(r'^index/render_pdf/(?P<id>\d+)/$', render_pdf),

views.py

def fetch_resources(uri, rel):
    path = os.path.join(settings.MEDIA_ROOT, uri.replace(settings.MEDIA_URL, ""))
    return path

def render_pdf (html, id):
    invoice_items_list = Invoice_Items.objects.filter(pk=id)
    result = StringIO.StringIO()
    pdf = pisa.pisaDocument(StringIO.StringIO(html.encode("ISO-8859-1")), dest=result, link_callback=fetch_resources)
    return result

In the template, I have this tag.

<a href="{% url c2duo.views.render_pdf invoices.pk %}">
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2 answers

I don't know how much this will help, but this is the function I use to render pdf:

def fetch_resources(uri, rel):
 """
 Callback to allow pisa/reportlab to retrieve Images,Stylesheets, etc.
 `uri` is the href attribute from the html link element.
 `rel` gives a relative path, but it not used here.

 """
 path = os.path.join(settings.MEDIA_ROOT, uri.replace(settings.MEDIA_URL, ""))
 return path

def render_pdf (html):
 result = StringIO.StringIO()
 pdf = pisa.pisaDocument(StringIO.StringIO(html.encode("ISO-8859-1")), dest=result, link_callback=fetch_resources)
 return result
+1
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Just for fun, try this instead:

def render_to_pdf(template_src, context_dict):
    html  = "<html><head><title>Title</title></head><body><h1>Hello</h1></body></html>"
    result = StringIO.StringIO()
    pdf = pisa.pisaDocument(StringIO.StringIO(html), result)
    if not pdf.err:
        return http.HttpResponse("" % (repr(result.getvalue())))
    else:
        raise Exception("The error was %s" % pdf.err)

If you still encounter an error, I assume that the error may be in Pisa. Are you sure this is relevant?

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