[Twisted-web] Best way to avoid chunked encoding in HTTP Resource response?

Tom Sheffler tom.sheffler at gmail.com
Thu Apr 19 11:37:50 EDT 2012

A straightforward use of a series of request.write()s with a
request.finish() in the render_GET() method of a resource defaults to
chunked encoding.  I can avoid the chunked encoding by computing the entire
response first using a StringIO (as shown below) and explicitly putting the
"Content-Length" header in myself.

Is this the best (or recommended) way to create such a response?

Thx - Tom


class myresource(Resource):

  def render_GET(self, response):
    output = StringIO.StringIO()

    data = output.getvalue()

    # Write the response data.  "content-length" suppresses chunked coding
    request.setHeader('content-length', len(data))
    return True
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