Communicating with a running python daemon

Question

I wrote a small Python application that runs as a daemon. It utilizes threading and queues.

I\'m looking for general approaches to altering this application so that

Answer 1

Use werkzeug and make your daemon include an HTTP-based WSGI server.

Your daemon has a collection of small WSGI apps to respond with status information.

Your client simply uses urllib2 to make POST or GET requests to localhost:somePort. Your client and server must agree on the port number (and the URL's).

This is very simple to implement and very scalable. Adding new commands is a trivial exercise.

Note that your daemon does not have to respond in HTML (that's often simple, though). Our daemons respond to the WSGI-requests with JSON-encoded status objects.