Implementations of the Web Server Gateway Interface

Note: many of these implementations may be partial/incomplete or noncompliant as of the current draft spec. If you can't get the code samples in the spec to work with one of these implementations, there's a good chance that the implementation is broken: contact the implementation's author.

See PEP 333 for more information on WSGI.

Web Server implementations

• Divmod Nevow Twisted Web-based templating framework with a WSGI implementation

• Eventlet - allows for the implementation of massively concurrent servers which would require prohibitive amounts of memory under a traditional preemptive multi-threading or multi-process model ... can also run inside of the nginx Web server using the mod_wsgi package for nginx

• flup has AJP, SCGI and FastCGI servers

• see Jonpy below<br>

• isapi_wsgi - a WSGI implementation for IIS ISAPI

• modjy - a WSGI implementation for Jython

• mod_wsgi module for Apache

• nginx mod_wsgi module for Nginx

• Peak has CGI and FastCGI gateway and server options more info

• Paste#http a SimpleHTTPServer-based server

• see Python Paste below

• SWAP - a WSGI adapter for SCGI.

• Twisted Web2 Experimental HTTP server with a WSGI implementation

• Toolserver Framework for Python - a WSGI implementation in a Medusa-based webservice framework

• wsgiref - a library of base classes covering most of the "hard parts" of a WSGI server implementation, written by the PEP author. It also includes utility functions and classes that may be useful for application/framework implementors, and should be considered a "must read" for server implementors. (Update: most of the limitations mentioned in the linked post have now been resolved; wsgiref now includes sensible default error handling and logging, automatic calculation of Content-Length when possible, and greater test coverage. See wsgiref for source code.)

• see WSGIUtils below

Web Framework implementations

• CherryPy 2.1 beta includes a mutli-threaded WSGI server

• Colubrid - simple to use WSGI implementation compatible with python2.2 or higher. It parses formdata, url parameters, cookies and implements some simple to use URL dispatchers.

• Django - An emerging framework generating a lot of buzz that has recently added support for WSGI

• Jonpy - this also includes a HTTP server with a WSGI backend

• Nevow - the reimplementation of Twisted's woven, doesn't require Twisted.

• Paste WebKit - a Webware reimplementation, implemented with a degree of framework-neutrality in mind.

• Python Web Modules - New version contains a WSGI server and middleware.

• Python Paste - a collection of low-level WSGI tools including a multi-threaded SSL-enabled WSGI server, and an auth package with signed cookies, sessions, form and digest authentication.

• Pylons - a WSGI-based framework using Mako and Paste

• QWIP - a WSGI adapter for Quixote applications.

• TurboGears also provides a WSGI front-end.

• Wareweb - a rethinking of Webware/WebKit

• WSGIUtils - A multi-threaded WSGI server implementation and a simple framework providing basic user authentication, signed cookies, and persistent sessions.

• Zope Zope 3 is now a WSGI application. It ships with the Twisted

  • WSGI server implementation and also includes an asyncore-based server implemenatation.