python cherrypy - how to add header

Question

How can I add retry-header in cherrypy?

  import cherrypy
  import os

  class Root:

    def index(self):
      cherrypy.response.headers['Retry-After'] = 60
      cherrypy.request.headers["Age"]= 20
      cherrypy.config.update({'Retry-After': '60'})

      raise cherrypy.HTTPError(503, 'Service Unavailable')
    index.exposed = True 

    cherrypy.quickstart(Root())

This retry-header dt works.

Benignant

Just a little suggestion: The common indentation level in python is 4 spaces - you might want to follow it instead of using 2 spaces. – Demonetize

ok thanks. can you help me in getting answer of my question? – Benignant

Answer 1

When you set a status code by raising HTTPError, the headers in cherrypy.response.headers are ignored. Set the HTTP status by setting cherrypy.response.status instead:

import cherrypy

class Root:
    def index(self):
        cherrypy.response.headers['Retry-After'] = 60
        cherrypy.response.status = 503
        # Feel free to return a better error page than the following
        return "<h1>Service Unavailable</h1>"
    index.exposed = True

cherrypy.quickstart(Root())

Lamb

You're welcome! If the answer solved your problem, please consider accepting it to show others that your question has been answered and to give credit for the answer: meta.stackexchange.com/questions/5234/… – Polygenesis