Question

First, let me just say that I have searched for information on this topic; there are a number of stackoverflow posts that all reference the same blog post from 2008:

http://boodebr.org/main/python/cherrypy-under-google-appserver#comment-51142

I understand that the new CherryPy version no longer requires the patch this blog post mentions. I have the cherrypy folder in the root of my GAE app – and I don’t get an error when I import it in my program – but beyond the “import cherrypy” line, I can’t get it to work. I’m not sure how to change the app.yaml file to properly reflect that I am using cherrypy, and not webbapp2 (or if that is important).

Is someone aware of an updated tutorial that could walk me through CherryPy/GAE? Or, could someone be so kind as to post the simple hello world program that will work using cherrypy in GAE?

Edit: If it helps, here’s the code I have in main.py right now – it returns two 404 errors from cherrypy.

import cherrypy
import wsgiref.handlers 

class Root:
def index(self):
    return "Hello, CherryPy!"


app = cherrypy.tree.mount(Root(), "/")
wsgiref.handlers.CGIHandler().run(app)

Answer 1

I’ve a website running in GAE with cherrypy, it is very straight forward, you code is correct but you are not exposing the index method that explain the 404.

Anyway you should use the run_wsgi_app that GAE provides, so your code will look like this:

import cherrypy
from google.appengine.ext.webapp.util import run_wsgi_app

class Root(object):

    @cherrypy.expose
    def index(self):
        return 'Hello CherryPy!'

app = cherrypy.tree.mount(Root(), '/')
run_wsgi_app(app)