Skip to content


Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Python module for RESTful HTTP Content Negotiation
branch: master



mimerender is a Python module for RESTful HTTP Content Negotiation.

It acts as a decorator that wraps a HTTP request handler to select the correct render function for a given HTTP Accept header. It uses mimeparse to parse the accept string and select the best available representation.

Support for webapp2 (Google App Engine),, Flask and Bottle is available out of the box and it's easy to add support for your favourite framework, just extend the MimeRenderBase class.

Build status at Travis CI: Build Status

You can read the full documentation at

Example (Flask):

from flask import Flask
import json
import mimerender

mimerender = mimerender.FlaskMimeRender()

render_xml = lambda message: '<message>%s</message>'%message
render_json = lambda **args: json.dumps(args)
render_html = lambda message: '<html><body>%s</body></html>'%message
render_txt = lambda message: message

app = Flask(__name__)

    default = 'html',
    html = render_html,
    xml  = render_xml,
    json = render_json,
    txt  = render_txt
def greet(name='world'):
    return {'message': 'Hello, ' + name + '!'}

if __name__ == "__main__":

Then you can do:

$ curl -i -H "Accept: application/html" localhost:8080/x
$ curl -i -H "Accept: application/xml" localhost:8080/x
$ curl -i -H "Accept: application/json" localhost:8080/x
$ curl -i -H "Accept: text/plain" localhost:8080/x

and get results that make sense.

In the examples directory you will find examples for all the other supported frameworks.

How to get it

mimerender is in PyPI, so it's as easy as doing:

$ pip install mimerender
Something went wrong with that request. Please try again.