CherryPy

One of the goals of the project founder, Remi Delon, was to make CherryPy as pythonic as possible. This allows the developer to use the framework as any regular Python module and to forget (from a technical point of view) that the application is for the web.

For instance, the common Hello World program with CherryPy 3 would look like:

import cherrypy

class HelloWorld:
    def index(self):
        return "Hello World!"
    index.exposed = True

cherrypy.quickstart(HelloWorld())

CherryPy implements:

• A HTTP/1.1-compliant, WSGI thread-pooled webserver.[4] Typically, CherryPy itself takes only 1–2 ms per page.[5][6]
• Support for any other WSGI-enabled web server or adapter, including Apache, IIS, lighttpd, mod_python, FastCGI, SCGI, and mod_wsgi.
• A native mod_python adapter.
• Multiple HTTP servers (e.g. ability to listen on multiple ports).[7]
• A plugin system[8] CherryPy plugins hook into events within the server process — into server startup, server shutdown, server exiting, etc. — to run code that needs to be run when the server starts up or shuts down.
• Built-in tools for caching, encoding, sessions, authorization, static content, and others. CherryPy tools hook into events within the request process. Whenever the CherryPy server receives a request, there is a specific set of steps it goes through to handle that request. Page handlers are only one step in the process. Tools also provide a syntax and configuration API for turning them on and off for a specific set of handlers.
• A configuration system for developers and deployers .[9][10][11] CherryPy deployments are configurable on site, on application and on controller level, through Python dictionaries, configuration files, and open file objects.
• A complete test suite for core functionality and associated framework which can be used to test CherryPy applications.[12]
• Built-in profiling since v2.1,[13] coverage[14] and testing support.

CherryPy doesn't force you to use a specific object-relational mapper (ORM), template language or JavaScript library.

• Comparison of web frameworks

• Official website